石墨炉原子吸收法测定地质样品中的微量银

How to Determine Micro-silver in Geological Samples by Using Graphite Fire Atomic Absorption Spectrum Method

摘要:

研究了石墨炉原子吸收法测定地质样品中微量Ag的方法，探索了以NH4IrCl6做基体改进剂的最佳仪器工作条件。在取样0.2000g，定容25mL的情况下，方法检出限为0.010μg/g，用国家标准物质验证，其准确度（RE%）小于10%，10次测定的精密度（RSD%）小于10%。

Abstract:

Micro-silver in geological samples are determined by using the method of graphite fire atomic absorption spectrum. It realized the best equipment conditions by using NH  4 IrCl  6 as the matrix modifier. Under the condition of sampling 0.2000g and const