分光光度法测定黄金冶炼废液中的硫氰酸根离子  

Determination of the thiocyanate radical ions in gold smelting waste solutions by spectrophotometry

作　　者：张涛 吕高兴 刘波涛 邢全林 隋晓玲 Zhang Tao;LüGaoxing;Liu Botao;Xing Quanlin;Sui Xiaoling(No.6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources;Technological Innovation Center for Deep Gold Mine Exploration and Development,Ministry of Natural Resources;Laboratory of Shandong Provincial Deep Gold Mine Detection Big Data Application Development Engineering;Zhaoyuan Reservoir Management Center)

机构地区：[1]山东省地质矿产勘查开发局第六地质大队,264209 [2]自然资源部深部金矿勘查开采技术创新中心 [3]山东省深部金矿探测大数据应用开发工程实验室 [4]招远市水库管理中心

出　　处：《黄金》2022年第12期96-98,共3页Gold

摘　　要：研究建立了分光光度法测定黄金冶炼废液中硫氰酸根离子的方法,并对前处理及显色时间等条件进行了优化。结果表明:前处理过程中加入10 mL 50 g/L硫代硫酸钠溶液和4 mL(1+3)盐酸溶液可有效沉淀分离干扰元素,最佳显色时间60 min。该方法的精密度为0.57%~5.07%,加标回收率为96.0%~102.3%,准确度和精密度良好,满足黄金冶炼废液中硫氰酸根离子检测要求。The study established a spectrophotometry method to determine the thiocyanate radical ions in gold smelting waste solutions and optimized the conditions such as the pre-treatment and color-developing time.The results show that during the pre-treatment,the addition of 10 mL 50 g/L sodium thiosulfate solution and 4 mL(1+3)hydrochloric acid can effectively precipitate and separate interference elements,and the optimal color-developing time is 60 min.The precision of the method is 0.57%-5.07%.The recovery rate of the reference material is 96.0%-102.3%.The accuracy and precision are both good.The method meets the requirements for thiocyanate radical ions detection in gold smelting waste solutions.

关 键 词：分光光度法 黄金冶炼 废液 硫氰酸根离子 沉淀分离 

分 类 号：TD926.3[矿业工程—选矿]