Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC

A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simul...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Guijie Li [verfasserIn] Xu Zhang [verfasserIn] Tingting Liu [verfasserIn] Hongxiu Fan [verfasserIn] Hongcheng Liu [verfasserIn] Shangyu Li [verfasserIn] Dawei Wang [verfasserIn] Lan Ding [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain

Übergeordnetes Werk:	In: Food Science and Human Wellness - KeAi Communications Co., Ltd., 2016, 10(2021), 3, Seite 375-382
Übergeordnetes Werk:	volume:10 ; year:2021 ; number:3 ; pages:375-382

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.fshw.2021.02.029

Katalog-ID:	DOAJ053876830

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650		4	\|a Dynamic microwave-assisted extraction
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700	0		\|a Lan Ding \|e verfasserin \|4 aut
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allfields	10.1016/j.fshw.2021.02.029 doi (DE-627)DOAJ053876830 (DE-599)DOAJc21c5c2ead1f41e3b388e3c9e0b05f14 DE-627 ger DE-627 rakwb eng TX341-641 Guijie Li verfasserin aut Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply Xu Zhang verfasserin aut Tingting Liu verfasserin aut Hongxiu Fan verfasserin aut Hongcheng Liu verfasserin aut Shangyu Li verfasserin aut Dawei Wang verfasserin aut Lan Ding verfasserin aut In Food Science and Human Wellness KeAi Communications Co., Ltd., 2016 10(2021), 3, Seite 375-382 (DE-627)742744027 (DE-600)2712869-6 22134530 nnns volume:10 year:2021 number:3 pages:375-382 https://doi.org/10.1016/j.fshw.2021.02.029 kostenfrei https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 kostenfrei http://www.sciencedirect.com/science/article/pii/S2213453021000380 kostenfrei https://doaj.org/toc/2213-4530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 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_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 10 2021 3 375-382
spelling	10.1016/j.fshw.2021.02.029 doi (DE-627)DOAJ053876830 (DE-599)DOAJc21c5c2ead1f41e3b388e3c9e0b05f14 DE-627 ger DE-627 rakwb eng TX341-641 Guijie Li verfasserin aut Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply Xu Zhang verfasserin aut Tingting Liu verfasserin aut Hongxiu Fan verfasserin aut Hongcheng Liu verfasserin aut Shangyu Li verfasserin aut Dawei Wang verfasserin aut Lan Ding verfasserin aut In Food Science and Human Wellness KeAi Communications Co., Ltd., 2016 10(2021), 3, Seite 375-382 (DE-627)742744027 (DE-600)2712869-6 22134530 nnns volume:10 year:2021 number:3 pages:375-382 https://doi.org/10.1016/j.fshw.2021.02.029 kostenfrei https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 kostenfrei http://www.sciencedirect.com/science/article/pii/S2213453021000380 kostenfrei https://doaj.org/toc/2213-4530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 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_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 10 2021 3 375-382
allfields_unstemmed	10.1016/j.fshw.2021.02.029 doi (DE-627)DOAJ053876830 (DE-599)DOAJc21c5c2ead1f41e3b388e3c9e0b05f14 DE-627 ger DE-627 rakwb eng TX341-641 Guijie Li verfasserin aut Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply Xu Zhang verfasserin aut Tingting Liu verfasserin aut Hongxiu Fan verfasserin aut Hongcheng Liu verfasserin aut Shangyu Li verfasserin aut Dawei Wang verfasserin aut Lan Ding verfasserin aut In Food Science and Human Wellness KeAi Communications Co., Ltd., 2016 10(2021), 3, Seite 375-382 (DE-627)742744027 (DE-600)2712869-6 22134530 nnns volume:10 year:2021 number:3 pages:375-382 https://doi.org/10.1016/j.fshw.2021.02.029 kostenfrei https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 kostenfrei http://www.sciencedirect.com/science/article/pii/S2213453021000380 kostenfrei https://doaj.org/toc/2213-4530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 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_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 10 2021 3 375-382
allfieldsGer	10.1016/j.fshw.2021.02.029 doi (DE-627)DOAJ053876830 (DE-599)DOAJc21c5c2ead1f41e3b388e3c9e0b05f14 DE-627 ger DE-627 rakwb eng TX341-641 Guijie Li verfasserin aut Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply Xu Zhang verfasserin aut Tingting Liu verfasserin aut Hongxiu Fan verfasserin aut Hongcheng Liu verfasserin aut Shangyu Li verfasserin aut Dawei Wang verfasserin aut Lan Ding verfasserin aut In Food Science and Human Wellness KeAi Communications Co., Ltd., 2016 10(2021), 3, Seite 375-382 (DE-627)742744027 (DE-600)2712869-6 22134530 nnns volume:10 year:2021 number:3 pages:375-382 https://doi.org/10.1016/j.fshw.2021.02.029 kostenfrei https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 kostenfrei http://www.sciencedirect.com/science/article/pii/S2213453021000380 kostenfrei https://doaj.org/toc/2213-4530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 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_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 10 2021 3 375-382
allfieldsSound	10.1016/j.fshw.2021.02.029 doi (DE-627)DOAJ053876830 (DE-599)DOAJc21c5c2ead1f41e3b388e3c9e0b05f14 DE-627 ger DE-627 rakwb eng TX341-641 Guijie Li verfasserin aut Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides. Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply Xu Zhang verfasserin aut Tingting Liu verfasserin aut Hongxiu Fan verfasserin aut Hongcheng Liu verfasserin aut Shangyu Li verfasserin aut Dawei Wang verfasserin aut Lan Ding verfasserin aut In Food Science and Human Wellness KeAi Communications Co., Ltd., 2016 10(2021), 3, Seite 375-382 (DE-627)742744027 (DE-600)2712869-6 22134530 nnns volume:10 year:2021 number:3 pages:375-382 https://doi.org/10.1016/j.fshw.2021.02.029 kostenfrei https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 kostenfrei http://www.sciencedirect.com/science/article/pii/S2213453021000380 kostenfrei https://doaj.org/toc/2213-4530 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 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_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 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_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 10 2021 3 375-382
language	English
source	In Food Science and Human Wellness 10(2021), 3, Seite 375-382 volume:10 year:2021 number:3 pages:375-382
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topic_facet	Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain Nutrition. Foods and food supply
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container_title	Food Science and Human Wellness
authorswithroles_txt_mv	Guijie Li @@aut@@ Xu Zhang @@aut@@ Tingting Liu @@aut@@ Hongxiu Fan @@aut@@ Hongcheng Liu @@aut@@ Shangyu Li @@aut@@ Dawei Wang @@aut@@ Lan Ding @@aut@@
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callnumber-first	T - Technology
author	Guijie Li
spellingShingle	Guijie Li misc TX341-641 misc Dynamic microwave-assisted extraction misc Liquid phase microextraction misc Gas chromatography misc Organochlorine pesticides misc Grain misc Nutrition. Foods and food supply Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
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topic_title	TX341-641 Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC Dynamic microwave-assisted extraction Liquid phase microextraction Gas chromatography Organochlorine pesticides Grain
topic	misc TX341-641 misc Dynamic microwave-assisted extraction misc Liquid phase microextraction misc Gas chromatography misc Organochlorine pesticides misc Grain misc Nutrition. Foods and food supply
topic_unstemmed	misc TX341-641 misc Dynamic microwave-assisted extraction misc Liquid phase microextraction misc Gas chromatography misc Organochlorine pesticides misc Grain misc Nutrition. Foods and food supply
topic_browse	misc TX341-641 misc Dynamic microwave-assisted extraction misc Liquid phase microextraction misc Gas chromatography misc Organochlorine pesticides misc Grain misc Nutrition. Foods and food supply
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title	Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
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title_full	Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
author_sort	Guijie Li
journal	Food Science and Human Wellness
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author_browse	Guijie Li Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding
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title_sort	dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by gc
callnumber	TX341-641
title_auth	Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
abstract	A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides.
abstractGer	A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides.
abstract_unstemmed	A convenient, cost-effective and fast method using dynamic microwave-assisted extraction and liquid phase microextraction based on the solidification of a floating drop was proposed to analyze organochlorine pesticides in grains including rice, maize and millet. Twelve samples can be processed simultaneously in the method. During the extraction process, 10% acetonitrile-water solutions containing 110 μL of n-hexadecane were used to extract organochlorine pesticides. Subsequently, 1.0 g sodium chloride was placed in the extract, and then centrifuged and cooled. The n-hexadecane drops containing the analytes were solidified and transferred for determination by gas chromatography-electron capture detector without any further filtration or cleaning process. Limits of detection for organochlorine pesticides were 0.97–1.01 μg/kg and the RSDs were in the range of 2.6%–8.5%. The developed technology has succeeded in analyzing six real grains samples and the recoveries of the organochlorine pesticides were 72.2%–94.3%. Compared with the published extraction methods, the developed method was used to analyze organochlorine pesticides in grains, being more environmentally friendly, which is suitable for the daily determination of organochlorine pesticides.
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title_short	Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC
url	https://doi.org/10.1016/j.fshw.2021.02.029 https://doaj.org/article/c21c5c2ead1f41e3b388e3c9e0b05f14 http://www.sciencedirect.com/science/article/pii/S2213453021000380 https://doaj.org/toc/2213-4530
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author2	Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding
author2Str	Xu Zhang Tingting Liu Hongxiu Fan Hongcheng Liu Shangyu Li Dawei Wang Lan Ding
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doi_str	10.1016/j.fshw.2021.02.029
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up_date	2024-07-03T20:04:01.590Z
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Dynamic microwave-assisted extraction combined with liquid phase microextraction based on the solidification of a floating drop for the analysis of organochlorine pesticides in grains followed by GC

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