Antimony speciation in soils, sediments and volcanic ashes by microwave extraction and HPLC-HG-AFS detection
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- 作者：Waldo Quiroza ; waldo.quiroz@ucv.cl" class="auth_mail" title="E-mail the corresponding author ; Francisco Astudilloa ; Manuel Bravoa ; Francisco Cereceda-Balicb ; Ví ; ctor Vidalb ; Marí ; a Rosario Palomo-Marí ; nc ; Fernando Rueda-Holgadoc ; Eduardo Pinilla-Gilc
- 关键词：Antimony speciation ; Volcanic ashes ; Microwave extraction ; Chaiten ; Soil ; Sediments
- 刊名：Microchemical Journal
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：129
- 期：Complete
- 页码：111-116
- 全文大小：536 K
文摘
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A methodology for Sb speciation in soils, sediments and volcanic ash was developed.
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The effect of extracting agents over % extraction and stability of Sb species was studied.
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100 mmol L− 1 of oxalic acid in 20 mmol L− 1 of ascorbic acid was the best condition.
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Methodology was applied to samples impacted by Chaiten's volcano eruption.
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We detect an enrichment of Sb(III) in sediments and volcanic ashes.