火焰原子吸收分光光度法检测矿区环境的常见重金属

Determination of Heavy Metal in the Mining Industry's Environment by FAAS

在红河州某矿区周围的土壤、池塘、鱼塘采集若干土壤、水样品。用氢氟酸-高氯酸-浓硝酸消化土壤样品，用硝酸处理水样品。实验中，原子吸收分光光度法的平均相关系数至0．99906；测定元素的相对标准差从0．27％～1．67％，其平均相对标准偏差为1．005％；样品的回收率在102．8％～111．5％之间，表明该法可用于环境中的土壤样品和水样品中重金属元素的准确测定。在仪器的最佳工作状态，使用FAAS法检测矿区环境中的铅（Pb）、铜（Cu）、铬（Cr）、汞（Hg）的含量；依此来发现矿区周围环境的重金属分布规律和周围环境的安全性。

The soil and water samples got from one of mining industry surroundings. Soil specimen was dissolved by HF - HClO4 - HNO3 ,Water specimen was dissolved by HNO3. The way of Flame Atomic Absorption Spectrometry （FAAS） correlative coefficient is ≥ 0. 99906. The standard deviation of examinated elements was range from 0. 27% to 1.67% and its average was 1. 0875%. The recovery of specimen was 102.8% - 111.5%. The way of FAAs can determinate traces of high metal in environment sample. Under optimum condition of SpectrAA - 220FS,the trace of Pb, Cu, Hg and Cr was measured by FAAS. The rule of heavy metals distributing and safety was appeared from result of measuring.