Simultaneous Determination of Trace Arsenic and Mercury in Drinking Water by Hydride Generation Atomic Fluorescence Spectrometry / 环境与健康杂志

ABSTRACT

Objective To establish the simultaneous determination of arsenic and mercury in the drinking water by hydride generation atomic fluorescence spectrometry (HGAFS). Methods The contents of trace arsenic and mercury in drinking water were detected by HGAFS based on optimized working conditions in this assay. The influences of some factors, such as sample pretreatment, pH value and interfering ions in drinking water were analyzed also. Results The detection limit of arsenic, mercury was 0.29 ng/ml and 0.05 ng/ml respectively. The precision (relative standard deviation) of the method was less than 6.8% .The recovery rates ranged from 85.7%～112.6%. The detecting results for standard materials were very much close to the reference values. Conclusion This method was suitable for the detection of arsenic and mercury in drinking water.