车间及周边环境部分重金属污染的监测分析方法

Monitoring Analysis Method of Heavy Metal Pollution in the Workshop and the Surrounding Environment

样品用HCl＋HNO3＋HF＋HClO3溶解，1：1HNO3提取，电感耦合等离子质谱（ICP—MS）测定样品中cr、cd、Pb，建立了车间及周边环境部分重金属污染的监测分析方法，此法可较好的满足重金属污染cr、cd、Pb分析要求。方法具有简单、快速、检出限低、灵敏度高等优点。方法cr的检出限1．0×10^-6，回收率97．06％～101．9％，相对标准偏差1．06％～4．68％。

The sample was dissolved by HCl＋HNO3＋HF＋HClO3,and extracted by 1：1 HNO3, then ICP-MS was applied to simultaneously detect trace Cr, Cd and Pb. Monitoring analysis method of heavy metal pollution in the workshop and the surrounding environment was established. The method can better meet the demand of heavy metals Cr, Cd and Pb pollution analysis. And the method is simple,rapid,low detection limit and high sensitivity. Its detection limit is 1.0 × 10^-6, the recovery rate is 97.06% ～ 101.9%, and the RSD is 1.06% ～ 4.68%.