摘要
采用氢化物冷原子荧光光谱法测定土壤中痕量汞是一种新方法。本文阐述了用王水热浸提 ,快速测定土壤样品中痕量汞的方法 ,试验了硼氢化钾浓度对测定汞的影响。用该方法测定污染农田土壤标准物质样品 (GBW 0 830 3) ,其测定结果与推荐值相吻合。相对偏差 1 4% ,回收率 87%～ 10 5 %。该方法快速、简单。
A method for the rapid determination of trace mercury in soil by hydride atomic fluorescence spectrometry is reported in this paper. The sample of soil is leached (at 80 degreesC-100 degreesC) with aqua regia (H2O + aqua regia, 1 + 1). The concentration of KBH4 used in this method is studied. Trace mercury in reference material (polluted farming soil) is determined by the described method too. The result obtained is in good agreement with standard value. The RSD is 1.4% and the recovery of mercury is 87%-105%. This method is proved to be rapid, simple and accurate.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2001年第3期382-383,共2页
Spectroscopy and Spectral Analysis
