Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry

WU Zheng; XIONG Ying; WANG Long-shan

doi:10.15898/j.cnki.11-2131/td.2015.05.006

2015 Vol. 34, No. 5

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Article navigation > Rock and Mineral Analysis > 2015 > 34(5): 533-538

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WU Zheng, XIONG Ying, WANG Long-shan. Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry[J]. Rock and Mineral Analysis, 2015, 34(5): 533-538. doi: 10.15898/j.cnki.11-2131/td.2015.05.006

Citation:

WU Zheng, XIONG Ying, WANG Long-shan. Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry[J]. Rock and Mineral Analysis, 2015, 34(5): 533-538. doi: 10.15898/j.cnki.11-2131/td.2015.05.006

Determination of As, Sb and Bi in Soil and Stream Sediment by a Self-developed Hydride Generation System Coupled with Inductively Coupled Plasma-Optical Emission Spectrometry

Experimental Institute of Geology and Mineral Resources of Shaanxi Province, Xi'an 710054, China

Received Date: 18 January 2014

Revised Date: 25 August 2015

Accepted Date: 05 September 2015

Publish Date: 25 May 2015

Abstract

Abstract

Hydride Generation (HG) combined with Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) has excellent analytical sensitivity. However, the instable chemical reactions of HG may cause unsatisfactory analytical precision. In this study, a novel and self-made HG system coupled with ICP-OES was developed for measurement of As, Sb and Bi in geological samples. Inner diameter (i.d.) of introduction tubing changed from 0.32 mm to 0.76 mm. Reaction tubing i.d. changed from 0.76 mm to 1.14 mm and length increased from 30 cm to 50 cm. These changes significantly improve the stability of HG reaction by increasing space and time of chemical reactions to reach reaction equilibrium. Arsenic, Sb and Bi were firstly leached from soil and stream sediment using HCl-HNO₃ water bath, pre-reduced by thiocarbamide-ascorbic acid mixture, and were finally determined by the modified HG-ICP-OES. The detection limits of this method are 0.35 μg/g, 0.33 μg/g and 0.25 μg/g for As, Sb and Bi, respectively. The linear ranges are 1.1-300 μg/g for As, 1.0-100 μg/g for Sb and 0.75-100 μg/g for Bi, which is sufficient for the measurement of As, Sb and Bi in geological samples.
- soil /
- stream sediment /
- As /
- Sb /
- Bi /
- Hydride Generation /
- Inductively Coupled Plasma-Optical Emission Spectrometry

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References

[1]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS504.002.htm
[2]	http://www.cnki.com.cn/Article/CJFDTOTAL-GDYS200703024.htm
[3]	http://www.cnki.com.cn/Article/CJFDTOTAL-GUAN200606049.htm
[4]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH201202040.htm
[5]	http://www.cnki.com.cn/Article/CJFDTOTAL-FXSY200707027.htm
[6]	http://www.cnki.com.cn/Article/CJFDTOTAL-TEST200606034.htm
[7]	http://www.cnki.com.cn/Article/CJFDTOTAL-YJFX201104011.htm
[8]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH201002015.htm
[9]	http://www.cnki.com.cn/Article/CJFDTOTAL-FXSY200206025.htm
[10]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS200706016.htm
[11]	http://www.cnki.com.cn/Article/CJFDTOTAL-FXSY200705016.htm
[12]	http://www.cnki.com.cn/Article/CJFDTOTAL-YOUS200602027.htm
[13]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH201210011.htm
[14]	http://www.cnki.com.cn/Article/CJFDTOTAL-FXHX199603028.htm
[15]	http://www.cnki.com.cn/Article/CJFDTOTAL-LHJH200407017.htm
[16]	http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS201302011.htm