Comparison of sample digestion procedures for the determination of arsenic in bottom sediment using hydride generation AAS

Krzysztof Loska; Danuta Wiechuła

doi:10.1007/s00604-006-581-2

Comparison of sample digestion procedures for the determination of arsenic in bottom sediment using hydride generation AAS

Krzysztof Loska
, Danuta Wiechuła

Department of Water and Wastewater Engineering (RIE/RIE4)

Medical University of Silesia in Katowice

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Certified reference materials (JMS-2 and JMS-1 - Marine sediment, LKSD-1 Lake Sediment, and STSD-1 Stream Sediment) and bottom sediment were analysed for arsenic by hydride generation atomic absorption spectrometry (HG-AAS) after digestion by different methods (microwave digestion, digestion in aluminium block, dry digestion) and different combinations of acids (HNO₃, HCl, HClO₄, H₂SO₄). The study revealed that both wet and dry digestion can be used to digest the reference materials and bottom sediment. Exceptionally satisfactory results were produced by the application of aqua regia, HNO₃ + HCl + HClO₄, and HNO₃ + HCl mixtures. Addition of Mg(NO₃)₂ during dry digestion caused an increase in arsenic recovery in the reference materials and improved the accuracy of arsenic determination in the bottom sediments.

Original language	English
Pages (from-to)	235-240
Number of pages	6
Journal	Microchimica Acta
Volume	154
Issue number	3-4
DOIs	https://doi.org/10.1007/s00604-006-581-2
Publication status	Published - Jul 2006

Keywords

Arsenic determination
Bottom sediment
Digestion
HG-AAS
Reference material

ASJC Scopus subject areas

Analytical Chemistry

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10.1007/s00604-006-581-2

Cite this

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abstract = "Certified reference materials (JMS-2 and JMS-1 - Marine sediment, LKSD-1 Lake Sediment, and STSD-1 Stream Sediment) and bottom sediment were analysed for arsenic by hydride generation atomic absorption spectrometry (HG-AAS) after digestion by different methods (microwave digestion, digestion in aluminium block, dry digestion) and different combinations of acids (HNO3, HCl, HClO4, H2SO4). The study revealed that both wet and dry digestion can be used to digest the reference materials and bottom sediment. Exceptionally satisfactory results were produced by the application of aqua regia, HNO3 + HCl + HClO4, and HNO3 + HCl mixtures. Addition of Mg(NO3)2 during dry digestion caused an increase in arsenic recovery in the reference materials and improved the accuracy of arsenic determination in the bottom sediments.",

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AU - Loska, Krzysztof

AU - Wiechuła, Danuta

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N2 - Certified reference materials (JMS-2 and JMS-1 - Marine sediment, LKSD-1 Lake Sediment, and STSD-1 Stream Sediment) and bottom sediment were analysed for arsenic by hydride generation atomic absorption spectrometry (HG-AAS) after digestion by different methods (microwave digestion, digestion in aluminium block, dry digestion) and different combinations of acids (HNO3, HCl, HClO4, H2SO4). The study revealed that both wet and dry digestion can be used to digest the reference materials and bottom sediment. Exceptionally satisfactory results were produced by the application of aqua regia, HNO3 + HCl + HClO4, and HNO3 + HCl mixtures. Addition of Mg(NO3)2 during dry digestion caused an increase in arsenic recovery in the reference materials and improved the accuracy of arsenic determination in the bottom sediments.

AB - Certified reference materials (JMS-2 and JMS-1 - Marine sediment, LKSD-1 Lake Sediment, and STSD-1 Stream Sediment) and bottom sediment were analysed for arsenic by hydride generation atomic absorption spectrometry (HG-AAS) after digestion by different methods (microwave digestion, digestion in aluminium block, dry digestion) and different combinations of acids (HNO3, HCl, HClO4, H2SO4). The study revealed that both wet and dry digestion can be used to digest the reference materials and bottom sediment. Exceptionally satisfactory results were produced by the application of aqua regia, HNO3 + HCl + HClO4, and HNO3 + HCl mixtures. Addition of Mg(NO3)2 during dry digestion caused an increase in arsenic recovery in the reference materials and improved the accuracy of arsenic determination in the bottom sediments.

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KW - Bottom sediment

KW - Digestion

KW - HG-AAS

KW - Reference material

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JO - Microchimica Acta

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Comparison of sample digestion procedures for the determination of arsenic in bottom sediment using hydride generation AAS

Abstract

Keywords

ASJC Scopus subject areas

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