Simultaneous Determination of Trace As, Sb, Bi and Hg in Soils by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry

Pan-hong HE; Ling-jun WU; Zhen YANG; Wei ZHANG; Yao RONG; Zhi-xiang GONG

Rock and Mineral Analysis > 2013 > 32(2): 240-243.

Pan-hong HE, Ling-jun WU, Zhen YANG, Wei ZHANG, Yao RONG, Zhi-xiang GONG. Simultaneous Determination of Trace As, Sb, Bi and Hg in Soils by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry[J]. Rock and Mineral Analysis, 2013, 32(2): 240-243.

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Simultaneous Determination of Trace As, Sb, Bi and Hg in Soils by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry

1.
Henan Nuclear Industry Radioactive Nuclide Testing Centre， Zhengzhou 450002, China
2.
PerkinElmer Instruments (Shanghai) Co. LTD, Shanghai 201203, China

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Received Date: October 17, 2012
Accepted Date: November 22, 2012
Published Date: March 31, 2013

Abstract

ABSTRACT

A method for the simultaneous determination of the trace contents of As, Sb, Bi and Hg in the same solution by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry (HG-ICP-AES) was established by using 10% hydrochloric acid as the dissolved medium. The soil sample was dissolved in water bath with aqua regia for one hour, and then ascorbic acid-thiourea solution was added to reduce As and Sb in advance without influence on the content of Hg. The elements were determined by a new type self-designed hydride generator coupled with ICP-AES with 10% hydrochloric acid, 0.5 L/min carrier gas and 10 g/L NaHB₄-NaOH as reductants. This method solved the problems of the inconvenience of multi-element determination and more reagent consumption. The sample pre-treatment and determination were easy, rapid and had no memory effect. The detection limits of the method were 0.01-0.06 ng/g, the recoveries of standard materials were between 92.0% and 102.0%, and RSD was less than 5%. This method is suitable for the simultaneous determination of the trace contents of As, Sb, Bi and Hg in environmental samples.
- soil,
- As,
- Sb,
- Bi,
- Hg,
- hydride generation,
- Inductively Coupled Plasma-Atomic Emission Spectrometry

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Simultaneous Determination of Trace As, Sb, Bi and Hg in Soils by Hydride Generation-Inductively Coupled Plasma-Atomic Emission Spectrometry

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