火焰原子吸收分光光度法测定铅锌矿中的银含量不确定度评定  

Evaluation of Uncertainty for Determination of Silver Content in Lead-zinc ore by Flame Atomic Absorption Spectrophotometry

作　　者：麦纪战 张丽玉 Mai Jizhan;Zhang Liyu(Laboratory of the 7th Geological Group,Guangdong Geological Bureau,Huizhou 516000,China)

机构地区：[1]广东省地质局第七地质大队,广东惠州516000

出　　处：《广东化工》2024年第18期187-189,共3页Guangdong Chemical Industry

摘　　要：目的:对火焰原子吸收分光光度法测定铅锌矿中的银含量不确定度评定。方法:实验测定中的称样质量、待测溶液中银的浓度、待测试液定容体积这3种主要不确定度的来源进行了评定[1]。结果:本实验中铅锌矿中的银含量为110μg/g,扩展不确定度为3μg/g,(包含因子k=2)[2]。结论:此结果,可为实际工作中银含量检测结果的评价提供参考意义。Objective:To evaluate the uncertainty of determination of silver in lead-zinc ore by flame atomic absorption spectrophotometry.Methods:The three main sources of uncertainty,namely the weight of the sample,the concentration of silver in the solution to be tested and the constant volume of the solution to be tested,were evaluated.Results:In this experiment,the silver content in lead-zinc ore is 110μg/g,and the extended uncertainty is 3μg/g(including factor K=2).Conclusion:This result can provide a reference for the evaluation of silver content detection results in practice.

关 键 词：铅锌矿 银 测定 火焰原子吸收分光光度法 不确定度 

分 类 号：TQ[化学工程]