Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods

Abstract In this study, seven pretreatment methods for chromium speciation in tanned leather were evaluated: acidic mineralization, ethylenediaminetetraacetic acid (EDTA) extraction, diethylenetriaminepentaacetic acid (DTPA) extraction, alkaline extraction (NH4OH), ammonium nitrate extraction (NH4NO...

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Autores principales:	Mónica Gisel Arellano-Sánchez, Christine Devouge-Boyer, Marie Hubert-Roux, Carlos Afonso, Mélanie Mignot
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Hexavalent chromium Speciation Tanned leather Sample pretreatment EDTA complexation Inductively coupled plasma Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/73b22192351c453986aad54c40fb1a65
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spelling	oai:doaj.org-article:73b22192351c453986aad54c40fb1a652021-11-21T12:13:56ZQuantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods10.1186/s42825-021-00071-22524-7859https://doaj.org/article/73b22192351c453986aad54c40fb1a652021-11-01T00:00:00Zhttps://doi.org/10.1186/s42825-021-00071-2https://doaj.org/toc/2524-7859Abstract In this study, seven pretreatment methods for chromium speciation in tanned leather were evaluated: acidic mineralization, ethylenediaminetetraacetic acid (EDTA) extraction, diethylenetriaminepentaacetic acid (DTPA) extraction, alkaline extraction (NH4OH), ammonium nitrate extraction (NH4NO3), water extraction, and phosphate buffer extraction. Acidic mineralization permitted the decomposition of the organic matter and ensured the complete digestion of leathers, giving access to the total content of chromium in each sample using inductively coupled plasma-atomic emission spectrometry (ICP-AES). From all the extractant media tested, EDTA proved to be the most efficient, allowing the extraction of Cr(VI) and Cr(III) as a Cr(III)-EDTA complex, quantitatively. Method validation is presented for EDTA extraction and direct mineralization. For the EDTA extraction, method detection limit (MDL) and method quantification limit (MQL) for total Cr in leather were 3.4 ppb and 11.2 ppb (µg of total Cr per L of extraction solution), respectively. Due to the lack of leather certified reference materials (CRMs) for Cr(VI), accuracy was evaluated by spiking leather samples with a Cr(VI) solution. The spike recovery of EDTA microwave assisted extraction ranged from 91.0 to 108.6%. Interday precision was also evaluated and all variation coefficients were below 5%, for both mineralization and EDTA extraction. This article provides an efficient procedure to extract quantitatively chromium from leather, while maintaining the speciation, which can be further followed by ion chromatography-inductively coupled plasma-mass spectrometry (IC-ICP-MS).Mónica Gisel Arellano-SánchezChristine Devouge-BoyerMarie Hubert-RouxCarlos AfonsoMélanie MignotSpringerOpenarticleHexavalent chromiumSpeciationTanned leatherSample pretreatmentEDTA complexationInductively coupled plasmaChemical technologyTP1-1185ENJournal of Leather Science and Engineering, Vol 3, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hexavalent chromium Speciation Tanned leather Sample pretreatment EDTA complexation Inductively coupled plasma Chemical technology TP1-1185
spellingShingle	Hexavalent chromium Speciation Tanned leather Sample pretreatment EDTA complexation Inductively coupled plasma Chemical technology TP1-1185 Mónica Gisel Arellano-Sánchez Christine Devouge-Boyer Marie Hubert-Roux Carlos Afonso Mélanie Mignot Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
description	Abstract In this study, seven pretreatment methods for chromium speciation in tanned leather were evaluated: acidic mineralization, ethylenediaminetetraacetic acid (EDTA) extraction, diethylenetriaminepentaacetic acid (DTPA) extraction, alkaline extraction (NH4OH), ammonium nitrate extraction (NH4NO3), water extraction, and phosphate buffer extraction. Acidic mineralization permitted the decomposition of the organic matter and ensured the complete digestion of leathers, giving access to the total content of chromium in each sample using inductively coupled plasma-atomic emission spectrometry (ICP-AES). From all the extractant media tested, EDTA proved to be the most efficient, allowing the extraction of Cr(VI) and Cr(III) as a Cr(III)-EDTA complex, quantitatively. Method validation is presented for EDTA extraction and direct mineralization. For the EDTA extraction, method detection limit (MDL) and method quantification limit (MQL) for total Cr in leather were 3.4 ppb and 11.2 ppb (µg of total Cr per L of extraction solution), respectively. Due to the lack of leather certified reference materials (CRMs) for Cr(VI), accuracy was evaluated by spiking leather samples with a Cr(VI) solution. The spike recovery of EDTA microwave assisted extraction ranged from 91.0 to 108.6%. Interday precision was also evaluated and all variation coefficients were below 5%, for both mineralization and EDTA extraction. This article provides an efficient procedure to extract quantitatively chromium from leather, while maintaining the speciation, which can be further followed by ion chromatography-inductively coupled plasma-mass spectrometry (IC-ICP-MS).
format	article
author	Mónica Gisel Arellano-Sánchez Christine Devouge-Boyer Marie Hubert-Roux Carlos Afonso Mélanie Mignot
author_facet	Mónica Gisel Arellano-Sánchez Christine Devouge-Boyer Marie Hubert-Roux Carlos Afonso Mélanie Mignot
author_sort	Mónica Gisel Arellano-Sánchez
title	Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
title_short	Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
title_full	Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
title_fullStr	Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
title_full_unstemmed	Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods
title_sort	quantitative extraction of chromium vi and iii from tanned leather: a comparative study of pretreatment methods
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/73b22192351c453986aad54c40fb1a65
work_keys_str_mv	AT monicagiselarellanosanchez quantitativeextractionofchromiumviandiiifromtannedleatheracomparativestudyofpretreatmentmethods AT christinedevougeboyer quantitativeextractionofchromiumviandiiifromtannedleatheracomparativestudyofpretreatmentmethods AT mariehubertroux quantitativeextractionofchromiumviandiiifromtannedleatheracomparativestudyofpretreatmentmethods AT carlosafonso quantitativeextractionofchromiumviandiiifromtannedleatheracomparativestudyofpretreatmentmethods AT melaniemignot quantitativeextractionofchromiumviandiiifromtannedleatheracomparativestudyofpretreatmentmethods
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Quantitative extraction of chromium VI and III from tanned leather: a comparative study of pretreatment methods

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