快速测定化探样品同一溶液中的铜铅锌砷锑铋

Rapid determination of Cu-Pb-Zn-As-Sb-Bi in the same solution of geochemical samples

传统方法分析化探样品中的铜铅锌砷锑铋需两次称样、溶矿,工作量大、成本高。本文作者在原有方法上进行部分改进,采用王水一次溶矿,分别用原子吸收-原子荧光测定土壤化探样品中同一体系的铜铅锌砷锑铋的含量,经国家一级标准样品的验证,此种方法快捷、简便,其检出限、准确度和精密度均符合规范要求。

The traditional method for the analysis of Cu-Pb-Zn-As-Sb-Bi in geochemical exploration samples needs to be weighed twice and dissolved, which is of great workload and high cost. In this paper, the authors made some improvements on the original method, using aqua regia once dissolved, and using atomic absorption-atomic fluorescence to determine the content of Cu-Pb-Zn-As-Sb-Bi in the same system in soil geochemical samples, which was verified by national first-class standard samples. This method is fast and simple, and its detection limit, accuracy and precision meet the requirements of the specification.