Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine

A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The p...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Reem Al-Luhaiby [verfasserIn] Mohammed Alenizzi [verfasserIn]

Format:	E-Artikel
Sprache:	Arabisch ; Englisch

Erschienen:	2020

Schlagwörter:	oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine

Übergeordnetes Werk:	In: مجلة التربية والعلم - College of Education for Pure Sciences, 2019, 29(2020), 4, Seite 62-75
Übergeordnetes Werk:	volume:29 ; year:2020 ; number:4 ; pages:62-75

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.33899/edusj.2020.126895.1062

Katalog-ID:	DOAJ003135284

Internformat


LEADER	01000caa a22002652 4500
001	DOAJ003135284
003	DE-627
005	20230309173328.0
007	cr uuu---uuuuu
008	230225s2020 xx \|\|\|\|\|o 00\| \|\|ara c
024	7		\|a 10.33899/edusj.2020.126895.1062 \|2 doi
035			\|a (DE-627)DOAJ003135284
035			\|a (DE-599)DOAJ52f91151753247489bed50436fcd4d72
040			\|a DE-627 \|b ger \|c DE-627 \|e rakwb
041			\|a ara \|a eng
050		0	\|a Q1-390
100	0		\|a Reem Al-Luhaiby \|e verfasserin \|4 aut
245	1	0	\|a Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
264		1	\|c 2020
336			\|a Text \|b txt \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
338			\|a Online-Ressource \|b cr \|2 rdacarrier
520			\|a A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.
650		4	\|a oxidative coupling,,
650		4	\|a ,،,؛spectrophotometry,,
650		4	\|a ,،,؛thiamine hydrochloride,,
650		4	\|a ,،,؛4-aminoantipyrine
653		0	\|a Education
653		0	\|a L
653		0	\|a Science (General)
700	0		\|a Mohammed Alenizzi \|e verfasserin \|4 aut
773	0	8	\|i In \|t مجلة التربية والعلم \|d College of Education for Pure Sciences, 2019 \|g 29(2020), 4, Seite 62-75 \|w (DE-627)734147023 \|w (DE-600)2697544-0 \|x 26642530 \|7 nnns
773	1	8	\|g volume:29 \|g year:2020 \|g number:4 \|g pages:62-75
856	4	0	\|u https://doi.org/10.33899/edusj.2020.126895.1062 \|z kostenfrei
856	4	0	\|u https://doaj.org/article/52f91151753247489bed50436fcd4d72 \|z kostenfrei
856	4	0	\|u https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf \|z kostenfrei
856	4	2	\|u https://doaj.org/toc/1812-125X \|y Journal toc \|z kostenfrei
856	4	2	\|u https://doaj.org/toc/2664-2530 \|y Journal toc \|z kostenfrei
912			\|a GBV_USEFLAG_A
912			\|a SYSFLAG_A
912			\|a GBV_DOAJ
912			\|a GBV_ILN_20
912			\|a GBV_ILN_22
912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_39
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_95
912			\|a GBV_ILN_110
912			\|a GBV_ILN_151
912			\|a GBV_ILN_161
912			\|a GBV_ILN_213
912			\|a GBV_ILN_230
912			\|a GBV_ILN_285
912			\|a GBV_ILN_293
912			\|a GBV_ILN_602
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_4012
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4249
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4306
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4367
912			\|a GBV_ILN_4700
951			\|a AR
952			\|d 29 \|j 2020 \|e 4 \|h 62-75

Indexfelder

author_variant	r a l ral m a ma
matchkey_str	article:26642530:2020----::pcrpooerceemntootimnhdohoieioiaieopig
hierarchy_sort_str	2020
callnumber-subject-code	Q
publishDate	2020
allfields	10.33899/edusj.2020.126895.1062 doi (DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72 DE-627 ger DE-627 rakwb ara eng Q1-390 Reem Al-Luhaiby verfasserin aut Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method. oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General) Mohammed Alenizzi verfasserin aut In مجلة التربية والعلم College of Education for Pure Sciences, 2019 29(2020), 4, Seite 62-75 (DE-627)734147023 (DE-600)2697544-0 26642530 nnns volume:29 year:2020 number:4 pages:62-75 https://doi.org/10.33899/edusj.2020.126895.1062 kostenfrei https://doaj.org/article/52f91151753247489bed50436fcd4d72 kostenfrei https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf kostenfrei https://doaj.org/toc/1812-125X Journal toc kostenfrei https://doaj.org/toc/2664-2530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 29 2020 4 62-75
spelling	10.33899/edusj.2020.126895.1062 doi (DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72 DE-627 ger DE-627 rakwb ara eng Q1-390 Reem Al-Luhaiby verfasserin aut Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method. oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General) Mohammed Alenizzi verfasserin aut In مجلة التربية والعلم College of Education for Pure Sciences, 2019 29(2020), 4, Seite 62-75 (DE-627)734147023 (DE-600)2697544-0 26642530 nnns volume:29 year:2020 number:4 pages:62-75 https://doi.org/10.33899/edusj.2020.126895.1062 kostenfrei https://doaj.org/article/52f91151753247489bed50436fcd4d72 kostenfrei https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf kostenfrei https://doaj.org/toc/1812-125X Journal toc kostenfrei https://doaj.org/toc/2664-2530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 29 2020 4 62-75
allfields_unstemmed	10.33899/edusj.2020.126895.1062 doi (DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72 DE-627 ger DE-627 rakwb ara eng Q1-390 Reem Al-Luhaiby verfasserin aut Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method. oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General) Mohammed Alenizzi verfasserin aut In مجلة التربية والعلم College of Education for Pure Sciences, 2019 29(2020), 4, Seite 62-75 (DE-627)734147023 (DE-600)2697544-0 26642530 nnns volume:29 year:2020 number:4 pages:62-75 https://doi.org/10.33899/edusj.2020.126895.1062 kostenfrei https://doaj.org/article/52f91151753247489bed50436fcd4d72 kostenfrei https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf kostenfrei https://doaj.org/toc/1812-125X Journal toc kostenfrei https://doaj.org/toc/2664-2530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 29 2020 4 62-75
allfieldsGer	10.33899/edusj.2020.126895.1062 doi (DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72 DE-627 ger DE-627 rakwb ara eng Q1-390 Reem Al-Luhaiby verfasserin aut Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method. oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General) Mohammed Alenizzi verfasserin aut In مجلة التربية والعلم College of Education for Pure Sciences, 2019 29(2020), 4, Seite 62-75 (DE-627)734147023 (DE-600)2697544-0 26642530 nnns volume:29 year:2020 number:4 pages:62-75 https://doi.org/10.33899/edusj.2020.126895.1062 kostenfrei https://doaj.org/article/52f91151753247489bed50436fcd4d72 kostenfrei https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf kostenfrei https://doaj.org/toc/1812-125X Journal toc kostenfrei https://doaj.org/toc/2664-2530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 29 2020 4 62-75
allfieldsSound	10.33899/edusj.2020.126895.1062 doi (DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72 DE-627 ger DE-627 rakwb ara eng Q1-390 Reem Al-Luhaiby verfasserin aut Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method. oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General) Mohammed Alenizzi verfasserin aut In مجلة التربية والعلم College of Education for Pure Sciences, 2019 29(2020), 4, Seite 62-75 (DE-627)734147023 (DE-600)2697544-0 26642530 nnns volume:29 year:2020 number:4 pages:62-75 https://doi.org/10.33899/edusj.2020.126895.1062 kostenfrei https://doaj.org/article/52f91151753247489bed50436fcd4d72 kostenfrei https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf kostenfrei https://doaj.org/toc/1812-125X Journal toc kostenfrei https://doaj.org/toc/2664-2530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 29 2020 4 62-75
language	Arabic English
source	In مجلة التربية والعلم 29(2020), 4, Seite 62-75 volume:29 year:2020 number:4 pages:62-75
sourceStr	In مجلة التربية والعلم 29(2020), 4, Seite 62-75 volume:29 year:2020 number:4 pages:62-75
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	oxidative coupling,, ,،,؛spectrophotometry,, ,،,؛thiamine hydrochloride,, ,،,؛4-aminoantipyrine Education L Science (General)
isfreeaccess_bool	true
container_title	مجلة التربية والعلم
authorswithroles_txt_mv	Reem Al-Luhaiby @@aut@@ Mohammed Alenizzi @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	734147023
id	DOAJ003135284
language_de	arabisch englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ003135284</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230309173328.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230225s2020 xx \|\|\|\|\|o 00\| \|\|ara c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.33899/edusj.2020.126895.1062</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ003135284</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ52f91151753247489bed50436fcd4d72</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">ara</subfield><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">Q1-390</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Reem Al-Luhaiby</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">oxidative coupling,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛spectrophotometry,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛thiamine hydrochloride,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛4-aminoantipyrine</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Education</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">L</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Science (General)</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Mohammed Alenizzi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">مجلة التربية والعلم</subfield><subfield code="d">College of Education for Pure Sciences, 2019</subfield><subfield code="g">29(2020), 4, Seite 62-75</subfield><subfield code="w">(DE-627)734147023</subfield><subfield code="w">(DE-600)2697544-0</subfield><subfield code="x">26642530</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:29</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:4</subfield><subfield code="g">pages:62-75</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.33899/edusj.2020.126895.1062</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doaj.org/article/52f91151753247489bed50436fcd4d72</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/1812-125X</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/2664-2530</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_DOAJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4012</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4367</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">29</subfield><subfield code="j">2020</subfield><subfield code="e">4</subfield><subfield code="h">62-75</subfield></datafield></record></collection>
callnumber-first	Q - Science
author	Reem Al-Luhaiby
spellingShingle	Reem Al-Luhaiby misc Q1-390 misc oxidative coupling,, misc ,،,؛spectrophotometry,, misc ,،,؛thiamine hydrochloride,, misc ,،,؛4-aminoantipyrine misc Education misc L misc Science (General) Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
authorStr	Reem Al-Luhaiby
ppnlink_with_tag_str_mv	@@773@@(DE-627)734147023
format	electronic Article
delete_txt_mv	keep
author_role	aut aut
collection	DOAJ
remote_str	true
callnumber-label	Q1-390
illustrated	Not Illustrated
issn	26642530
topic_title	Q1-390 Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine oxidative coupling ,،,؛spectrophotometry ,،,؛thiamine hydrochloride ,،,؛4-aminoantipyrine
topic	misc Q1-390 misc oxidative coupling,, misc ,،,؛spectrophotometry,, misc ,،,؛thiamine hydrochloride,, misc ,،,؛4-aminoantipyrine misc Education misc L misc Science (General)
topic_unstemmed	misc Q1-390 misc oxidative coupling,, misc ,،,؛spectrophotometry,, misc ,،,؛thiamine hydrochloride,, misc ,،,؛4-aminoantipyrine misc Education misc L misc Science (General)
topic_browse	misc Q1-390 misc oxidative coupling,, misc ,،,؛spectrophotometry,, misc ,،,؛thiamine hydrochloride,, misc ,،,؛4-aminoantipyrine misc Education misc L misc Science (General)
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
format_main_str_mv	Text Zeitschrift/Artikel
carriertype_str_mv	cr
hierarchy_parent_title	مجلة التربية والعلم
hierarchy_parent_id	734147023
hierarchy_top_title	مجلة التربية والعلم
isfreeaccess_txt	true
familylinks_str_mv	(DE-627)734147023 (DE-600)2697544-0
title	Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
ctrlnum	(DE-627)DOAJ003135284 (DE-599)DOAJ52f91151753247489bed50436fcd4d72
title_full	Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
author_sort	Reem Al-Luhaiby
journal	مجلة التربية والعلم
journalStr	مجلة التربية والعلم
callnumber-first-code	Q
lang_code	ara eng
isOA_bool	true
recordtype	marc
publishDateSort	2020
contenttype_str_mv	txt
container_start_page	62
author_browse	Reem Al-Luhaiby Mohammed Alenizzi
container_volume	29
class	Q1-390
format_se	Elektronische Aufsätze
author-letter	Reem Al-Luhaiby
doi_str_mv	10.33899/edusj.2020.126895.1062
author2-role	verfasserin
title_sort	spectrophotometric determination of thiamine hydrochloride via oxidative coupling reaction using 4-aminoantipyrine
callnumber	Q1-390
title_auth	Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
abstract	A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.
abstractGer	A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.
abstract_unstemmed	A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700
container_issue	4
title_short	Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine
url	https://doi.org/10.33899/edusj.2020.126895.1062 https://doaj.org/article/52f91151753247489bed50436fcd4d72 https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf https://doaj.org/toc/1812-125X https://doaj.org/toc/2664-2530
remote_bool	true
author2	Mohammed Alenizzi
author2Str	Mohammed Alenizzi
ppnlink	734147023
callnumber-subject	Q - General Science
mediatype_str_mv	c
isOA_txt	true
hochschulschrift_bool	false
doi_str	10.33899/edusj.2020.126895.1062
callnumber-a	Q1-390
up_date	2024-07-03T16:11:10.336Z
_version_	1803574911005884416
fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">DOAJ003135284</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230309173328.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230225s2020 xx \|\|\|\|\|o 00\| \|\|ara c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.33899/edusj.2020.126895.1062</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)DOAJ003135284</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)DOAJ52f91151753247489bed50436fcd4d72</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">ara</subfield><subfield code="a">eng</subfield></datafield><datafield tag="050" ind1=" " ind2="0"><subfield code="a">Q1-390</subfield></datafield><datafield tag="100" ind1="0" ind2=" "><subfield code="a">Reem Al-Luhaiby</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">A sensitive spectrophotometric method has been developed for the determination of thiamine hydrochloride by oxidative coupling reaction of thiamine with the reagent 4-aminoantipyrine (4-AAP) in the presence of copper sulphate as oxidizing agent in alkaine medium forming a reddish brown colour. The product show maximum absorption at 335 nm. The molar absorptivitiy is 26410.59 l/mol.cm for concentrations obeyed Beer’s law in the range 0.2-18 μg.ml-1. The recovery was 100.93 % with relative standard deviation < 2.0 % for thiamine hydrochloride.Thiamine and reagent 4-AAP product was formed in the ratio of 1:1. The stability constant of the product was 3.39×106 l.mol-1 for thiamine hydrochloride indicating the good stability of this product. The optimum conditions for full colour development are described and the proposed method was applied successfully for determination of thiamine in the pharmaceutical preparation (Neurorubine). The common excipients used as additives in pharmaceutical do not interfere in the proposed method.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">oxidative coupling,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛spectrophotometry,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛thiamine hydrochloride,,</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">,،,؛4-aminoantipyrine</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Education</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">L</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Science (General)</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Mohammed Alenizzi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">In</subfield><subfield code="t">مجلة التربية والعلم</subfield><subfield code="d">College of Education for Pure Sciences, 2019</subfield><subfield code="g">29(2020), 4, Seite 62-75</subfield><subfield code="w">(DE-627)734147023</subfield><subfield code="w">(DE-600)2697544-0</subfield><subfield code="x">26642530</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:29</subfield><subfield code="g">year:2020</subfield><subfield code="g">number:4</subfield><subfield code="g">pages:62-75</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.33899/edusj.2020.126895.1062</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doaj.org/article/52f91151753247489bed50436fcd4d72</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://edusj.mosuljournals.com/article_165390_ae4ce8dc4d57b82cb88567cb1372d755.pdf</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/1812-125X</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">https://doaj.org/toc/2664-2530</subfield><subfield code="y">Journal toc</subfield><subfield code="z">kostenfrei</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_DOAJ</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_39</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_161</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_213</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_230</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_285</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4012</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4249</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4306</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4367</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4700</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">29</subfield><subfield code="j">2020</subfield><subfield code="e">4</subfield><subfield code="h">62-75</subfield></datafield></record></collection>
score	7.4013834

Nicht das Richtige dabei?

Schreiben Sie uns!

Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine

Nicht das Richtige dabei?

Zugang & Verfügbarkeit

Vorhandene Bände

Nicht das Richtige dabei?