电感耦合等离子体光谱法测定贵金属合金电镀废水中贵金属  

Determination of precious metals in precious metal alloy electroplating wastewater by ICP

作　　者：王建军 庄宇凯 徐剑瑛 王绍娟 曹全苹 Wang Jianjun;Zhuang Yukai;Xu Jianying;Wang Shaojuan;Cao Quanping(Shandong Zhaojin Gold&Silver Refinery Co.,Ltd.;ZHN Precious Metals Testing Co.,Ltd.)

机构地区：[1]山东招金金银精炼有限公司 [2]中恒诺贵金属检测有限公司

出　　处：《黄金》2023年第10期106-108,共3页Gold

摘　　要：贵金属合金电镀废水中贵金属含量的测定,目前还未有专门的测定标准。研究建立了一种贵金属合金电镀废水中5种贵金属元素的电感耦合等离子体光谱测定方法,通过烘干脱水、焙烧的方式,有效避免了电镀废水中杂质的影响。通过对焙烧温度、焙烧时间、试料溶解酸用量等进行条件实验,确定了焙烧温度为550℃,焙烧时间为2 h,酸(王水)用量为10 mL。本方法加标回收率为97.33%~102.67%,测试结果的相对标准偏差为0.58%~2.58%,准确度与精密度符合分析测试要求。There is no special standard for the determination of precious metal content in precious metal alloy electroplating wastewater.An ICP method for the determination of 5 precious metal elements in precious metal alloy electroplating wastewater was established in the study.By means of drying,dehydration,and roasting,the influence of impurities in electroplating wastewater was effectively avoided.The condition tests on roasting temperature,roasting time,and acid dosed for dissolution of the sample were conducted,which determined that the roasting temperature was 550℃,the roasting time was 2 h,and the dosage of acid(aqua regia)used for sample dissolution was 10 mL.The recovery rates were 97.33%-102.67%,and the relative standard deviation(RSD)was 0.58%-2.58%.The accuracy and precision are up to the requirements of analysis and testing.

关 键 词：电镀废水 贵金属 电感耦合等离子体光谱法 焙烧温度 酸用量 

分 类 号：TD926.3[矿业工程—选矿]