Revisited digestion methods for trace element analysis in human hair

Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among th...
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Autor*in:	Woo-Jin Shin [verfasserIn] Minkyoung Jung [verfasserIn] Jong-Sik Ryu [verfasserIn] Jihwan Hwang [verfasserIn] Kwang-Sik Lee [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Human hair Trace element Temperature Hydrogen peroxide Organometallic cation

Übergeordnetes Werk:	In: Journal of Analytical Science and Technology - SpringerOpen, 2016, 11(2019), 1, Seite 5
Übergeordnetes Werk:	volume:11 ; year:2019 ; number:1 ; pages:5

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s40543-019-0200-6

Katalog-ID:	DOAJ074039407

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520			\|a Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.
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author_variant	w j s wjs m j mj j s r jsr j h jh k s l ksl
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allfields	10.1186/s40543-019-0200-6 doi (DE-627)DOAJ074039407 (DE-599)DOAJ23d3a2b511744cc5902006c2c1a7aab9 DE-627 ger DE-627 rakwb eng QD1-999 QD71-142 Woo-Jin Shin verfasserin aut Revisited digestion methods for trace element analysis in human hair 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation. Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry Minkyoung Jung verfasserin aut Jong-Sik Ryu verfasserin aut Jihwan Hwang verfasserin aut Kwang-Sik Lee verfasserin aut In Journal of Analytical Science and Technology SpringerOpen, 2016 11(2019), 1, Seite 5 (DE-627)669832553 (DE-600)2632347-3 20933371 nnns volume:11 year:2019 number:1 pages:5 https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 kostenfrei https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/toc/2093-3371 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 5
spelling	10.1186/s40543-019-0200-6 doi (DE-627)DOAJ074039407 (DE-599)DOAJ23d3a2b511744cc5902006c2c1a7aab9 DE-627 ger DE-627 rakwb eng QD1-999 QD71-142 Woo-Jin Shin verfasserin aut Revisited digestion methods for trace element analysis in human hair 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation. Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry Minkyoung Jung verfasserin aut Jong-Sik Ryu verfasserin aut Jihwan Hwang verfasserin aut Kwang-Sik Lee verfasserin aut In Journal of Analytical Science and Technology SpringerOpen, 2016 11(2019), 1, Seite 5 (DE-627)669832553 (DE-600)2632347-3 20933371 nnns volume:11 year:2019 number:1 pages:5 https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 kostenfrei https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/toc/2093-3371 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 5
allfields_unstemmed	10.1186/s40543-019-0200-6 doi (DE-627)DOAJ074039407 (DE-599)DOAJ23d3a2b511744cc5902006c2c1a7aab9 DE-627 ger DE-627 rakwb eng QD1-999 QD71-142 Woo-Jin Shin verfasserin aut Revisited digestion methods for trace element analysis in human hair 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation. Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry Minkyoung Jung verfasserin aut Jong-Sik Ryu verfasserin aut Jihwan Hwang verfasserin aut Kwang-Sik Lee verfasserin aut In Journal of Analytical Science and Technology SpringerOpen, 2016 11(2019), 1, Seite 5 (DE-627)669832553 (DE-600)2632347-3 20933371 nnns volume:11 year:2019 number:1 pages:5 https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 kostenfrei https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/toc/2093-3371 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 5
allfieldsGer	10.1186/s40543-019-0200-6 doi (DE-627)DOAJ074039407 (DE-599)DOAJ23d3a2b511744cc5902006c2c1a7aab9 DE-627 ger DE-627 rakwb eng QD1-999 QD71-142 Woo-Jin Shin verfasserin aut Revisited digestion methods for trace element analysis in human hair 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation. Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry Minkyoung Jung verfasserin aut Jong-Sik Ryu verfasserin aut Jihwan Hwang verfasserin aut Kwang-Sik Lee verfasserin aut In Journal of Analytical Science and Technology SpringerOpen, 2016 11(2019), 1, Seite 5 (DE-627)669832553 (DE-600)2632347-3 20933371 nnns volume:11 year:2019 number:1 pages:5 https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 kostenfrei https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/toc/2093-3371 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 5
allfieldsSound	10.1186/s40543-019-0200-6 doi (DE-627)DOAJ074039407 (DE-599)DOAJ23d3a2b511744cc5902006c2c1a7aab9 DE-627 ger DE-627 rakwb eng QD1-999 QD71-142 Woo-Jin Shin verfasserin aut Revisited digestion methods for trace element analysis in human hair 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation. Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry Minkyoung Jung verfasserin aut Jong-Sik Ryu verfasserin aut Jihwan Hwang verfasserin aut Kwang-Sik Lee verfasserin aut In Journal of Analytical Science and Technology SpringerOpen, 2016 11(2019), 1, Seite 5 (DE-627)669832553 (DE-600)2632347-3 20933371 nnns volume:11 year:2019 number:1 pages:5 https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 kostenfrei https://doi.org/10.1186/s40543-019-0200-6 kostenfrei https://doaj.org/toc/2093-3371 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 5
language	English
source	In Journal of Analytical Science and Technology 11(2019), 1, Seite 5 volume:11 year:2019 number:1 pages:5
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topic_facet	Human hair Trace element Temperature Hydrogen peroxide Organometallic cation Chemistry Analytical chemistry
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authorswithroles_txt_mv	Woo-Jin Shin @@aut@@ Minkyoung Jung @@aut@@ Jong-Sik Ryu @@aut@@ Jihwan Hwang @@aut@@ Kwang-Sik Lee @@aut@@
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Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Human hair</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Trace element</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hydrogen peroxide</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Organometallic cation</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Chemistry</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Analytical 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callnumber-first	Q - Science
author	Woo-Jin Shin
spellingShingle	Woo-Jin Shin misc QD1-999 misc QD71-142 misc Human hair misc Trace element misc Temperature misc Hydrogen peroxide misc Organometallic cation misc Chemistry misc Analytical chemistry Revisited digestion methods for trace element analysis in human hair
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topic_title	QD1-999 QD71-142 Revisited digestion methods for trace element analysis in human hair Human hair Trace element Temperature Hydrogen peroxide Organometallic cation
topic	misc QD1-999 misc QD71-142 misc Human hair misc Trace element misc Temperature misc Hydrogen peroxide misc Organometallic cation misc Chemistry misc Analytical chemistry
topic_unstemmed	misc QD1-999 misc QD71-142 misc Human hair misc Trace element misc Temperature misc Hydrogen peroxide misc Organometallic cation misc Chemistry misc Analytical chemistry
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title	Revisited digestion methods for trace element analysis in human hair
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title_full	Revisited digestion methods for trace element analysis in human hair
author_sort	Woo-Jin Shin
journal	Journal of Analytical Science and Technology
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title_sort	revisited digestion methods for trace element analysis in human hair
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title_auth	Revisited digestion methods for trace element analysis in human hair
abstract	Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.
abstractGer	Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.
abstract_unstemmed	Abstract Background The human hair is a potential material for assessing the exposure to environmental contaminants and tracing human mobility. Although various digestion methods have been proposed for determining trace elements in the human hair, there is no consensus about the best method among them yet. Findings We examined five different methods in order to determine the best method yielding the most accurate and precise data of trace elements in the human hair using two certified reference human hairs (IAEA085 and IAEA086) under controlled conditions (temperature, the volume of hydrogen peroxide (H2O2), and the number of digestion). Results showed that a high temperature of 160 °C yields better recovery rates than a low temperature of 70 °C. Furthermore, the additional input of H2O2 increases the recovery rate from 90 to 102%, and the two-time digestion also promotes the recovery rate. Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.
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title_short	Revisited digestion methods for trace element analysis in human hair
url	https://doi.org/10.1186/s40543-019-0200-6 https://doaj.org/article/23d3a2b511744cc5902006c2c1a7aab9 https://doaj.org/toc/2093-3371
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up_date	2024-07-03T21:00:19.405Z
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Conclusions This study suggests that although the combination of high temperature (160 °C), high volume of H2O2 (0.4 mL), and two-time digestion yields the most accurate and precise data of trace elements in the human hair, the digestion method should be carefully selected depending on the content of organometallic cation.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Human hair</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Trace element</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Temperature</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hydrogen peroxide</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Organometallic cation</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Chemistry</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Analytical 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Revisited digestion methods for trace element analysis in human hair

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