Determination of Trace Hg in Underground Water by Inductively Coupled Plasma-Atomic Emission Spectrometry with Cu-DDTC Separation and Enrichment
详细信息
- 责任者：Cui Desong (Northeast Testing and Quality Supervision Center for Geological and Mineral Products ; Ministry of Land and Resources ; Shenyang 110032 ; China)
- 刊名：Rock and Mineral Analysis
- 出版年：2011
- 卷期：30(3)
- 关键词：ICP—AES ; inductively coupled plasma atomic emission spectroscopy ; 汞 ; mercury
- 页码：p.321-324
- 图表：3 tables, 16 refs.
- 分类号：0900
- issnNo：ISSN0254-5357
- isbnNo：CN11-2131/TD
摘要
A method for the determination of Hg in underground water by inductively coupled plasma-optical emission spectrometry (ICP-AES) has been developed. Hg (Ⅱ) was separated and enriched according to the coprecipitation of Hg (Ⅱ) by Cu (Ⅱ) and DDTC chelate compound in water. In order to detect the accurate value of Hg, different amount of Cu and DDTC was loaded into Hg standard solution to optimize the added amounts of Cu and DDTC. Certified Reference Materials and practical samples were analyzed and the results were in agreement with the certified values obtained following national standard methods. The relative standard deviation (RSD, n=12) is less than 10%. Therefore, the proposed method meets the requirements for determination of trace Hg in underground water.
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