氰化液中金量测定方法研究  

Methods for gold content determination in cyanide solutions

作　　者：王菊 陈永红 张灵芝 葛仲义 贾国宁 Wang Ju;Chen Yonghong;Zhang Lingzhi;Ge Zhongyi;Jia Guoning(Changchun Gold Research Institute Co.,Ltd.;National Quality Supervision and Inspection Center for Gold and Silver Products(Changchun))

机构地区：[1]长春黄金研究院有限公司,长春市130012 [2]国家金银及制品质量监督检验中心(长春)

出　　处：《黄金》2021年第10期87-89,共3页Gold

摘　　要：研究建立了活性炭吸附-火焰原子吸收光谱法测定氰化液中金量的测定方法。通过条件实验确定最大取样量为200 mL、最小取样量为10.00 mL,消解时王水加入量为50 mL,加热时间为30 min,过滤时纸浆厚度为0.5~0.8 cm,定容介质为5%盐酸。该方法的精密度均小于5%,加标回收率为94.0%~99.4%,准确度和精密度良好。The study established a method for gold content determination in cyanide solutions by activated carbon adsorption-flame atomic absorption spectrometry.The condition test determined that the maximum sampling amount is 200 mL,the minimum is 10.00 mL,the aqua regia is 50 mL for dissolution,the heat time is 30 min,the paper pulp thickness when filtered is 0.5-0.8 cm,the volumetric media is 5%HCl.The precision of the method is below 5%.The recovery rate of reference materials is 94.0%-99.4%.The accuracy and precision are both good.

关 键 词：氰化液 金 活性炭吸附 火焰原子吸收光谱法 干扰元素 

分 类 号：TD926.3[矿业工程—选矿]