摘要
为简化消解植物样的方法,提高测定植物样中汞的准确性.实验采用逆王水水浴消解样品,样品经SnCl2还原,冷原子荧光测定了植物样中汞的含量.方法检出限0.40ng·g-1（稀释因子100倍）,精密度（n=12）3.14％～6.49％,加标回收率94.4％～98.7％,方法经生物国家一级标准物质验证方法准确可靠.
In order to simplify the method for plants digestion and increase the accuracy of determination of Hg,in this paper,the samples were firstly treated through the inverse aquaregia digestion in the water bath,and then reduced by the SnCl2,after that,the concentration of Hg was determined by the cold atomic fluorescent spectrophotometry.The detection limit is 0.40ng·g-1 （dilution factor 100）,RSD （n=12） is in the range between 3.14% and 6.49%,the recovery for the sample is in the range of 94.4% to 98.7%.The method has been applied to the determination of Hg in biological national standard reference materials .
出处
《化学工程师》
CAS
2014年第6期24-26,共3页
Chemical Engineer
基金
地质大调查项目资助(1212011120277)
关键词
植物样
冷原子荧光
汞的测定
plant sample
cold atomic fluorescence spectroscopy
determination of mercury
