火焰原子吸收光谱法测定低品位金矿石中金  

Determination of gold in low-grade gold ores by flame atomic absorption spectrometry

作　　者：杨德明 申宁 王倩 Yang Deming;Shen Ning;Wang Qian(Qinghai 6th Institute of Geology and Mineral Exploration;Dulan Jinhui Mining Co.,Ltd.;Engineering and Technology Research Center for the Development of Gold Mining Resources in Qinghai Province)

机构地区：[1]青海省第六地质勘查院 [2]都兰金辉矿业有限公司 [3]青海省金矿资源开发工程技术研究中心

出　　处：《黄金》2023年第6期98-101,共4页Gold

基　　金：四川省区域创新合作项目(22QYCX0061)。

摘　　要：采用火焰原子吸收光谱法测定低品位金矿石中金,从加工粒度、焙烧条件、活性炭吸附回收率和原子吸收分光光度计期间核查等4个方面进行最优测定条件的探究,分析了低品位金矿石测试分析过程中的相关误差来源,并进一步优化了实验测试方法和流程,提高了测试数据的稳定性。本方法测定结果的相对标准偏差(n=10)小于1%,准确度和精密度较高,且简单、实用,满足矿山生产技术指标测定需求。Flame atomic absorption spectrometry was used to determine gold in low-grade gold ore.The optimal measurement conditions were explored from 4 aspects:processing particle size,roasting conditions,activated carbon adsorption recovery rate,and atomic absorption spectrophotometer verification during experiments.The sources of relevant errors in the analysis process of low-grade gold ore were analyzed,and the experimental testing method and process were further optimized to improve the stability of the testing data.The method has high accuracy and precision,with a relative standard deviation(n=10)of less than 1%,and is simple,practical,and suitable for the measurement requirements of mining production technical indicators.

关 键 词：金矿石 低品位 火焰原子吸收光谱法 加工粒度 活性炭吸附 

分 类 号：O653.7[理学—分析化学]