Determinatoin of Trace Mercury in Sludge Samples by Hydride Generation-Atomic Fluorescence Spectrometry
WANG Yan-yan1, SHI Zhi-qiang2, ZHANG Biao2
1. College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China 2. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China
Abstract Due to the complex matrix characteristic of sludge samples, the research on three wet digestion systems and the conditions of reducing agent, and carrier flow was carried. The experiment conditions of HNO3-HClO4 wet systems, namely 5% HNO3 carrier flow, 0.1% NaBH4 reducing agent, and acidity medium of 5% HNO3+0.05% K2Cr2O7 mixed solution, etc. were finally determined to measure the trace mercury in sludge samples. This recommended method has many advantages, such as accurate and quick detection and simple operation. The determination limit is 0.06 μg·L-1, and the relative standard deviation for 11-time determination of the solution containing 4.0 μg·L-1 Hg is 2.0%. This method for trace mercury in sludge samples by hydride generation-fluorescence (HG-AFS) can be widely used.
Corresponding Authors:
WANG Yan-yan
E-mail: yy_wang320@163.com
Cite this article:
WANG Yan-yan,SHI Zhi-qiang,ZHANG Biao. Determinatoin of Trace Mercury in Sludge Samples by Hydride Generation-Atomic Fluorescence Spectrometry[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(03): 826-828.
[1] Bax D, Agterdenboa J, Worrell E, et al. Anal. Chim. Acta, 2002, 463: 177. [2] XIE Mei-qi, CUI Kun-yan, ZHANG Wei-hong, et al(谢美琪，崔昆燕，张卫红, 等). Journal of Instrumental Analysis(分析测试学报)，2001，20(2)：47. [3] NAN Hai-tao, ZENG Jie(南海涛, 曾 杰). Physical Testing and Chemical Analysis Part B：Chemical Analysis(理化检验-化学分册), 2003, 39(5)：276. [4] HUANG Min-wen, YUAN Xing-hai, LIN Sui-yun, et al(黄敏文，苑星海，林穗云, 等). Chemical Analysis of Sample Handle(化学分析的样品处理). Beijing：Chemical Industry Press(北京: 化学工业出版社)，2007. 38.
NI Zi-yue1, CHENG Da-wei2, LIU Ming-bo2, HU Xue-qiang2, LIAO Xue-liang2, YUE Yuan-bo2, LI Xiao-jia1,2, CHEN Ji-wen3. The Rapid Detection of Trace Mercury in Soil With EDXRF[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(03): 734-738.
