氟离子选择电极法测定含铜蚀刻废液中氟含量方法探讨  

Determination of fluorine content in spent coppery etching waste liquid recovered from copper salt resources by ion-selective electrode

作　　者：彭义华 PENG Yi-hua(National Environmental Protection Hazardous Waste Utilization and Disposal Engineering Technology(Shenzhen)Center,Shenzhen 518049,China;Shenzhen Accurate Testing Co.,LTD,Shenzhen 518172,China)

机构地区：[1]国家环境保护危险废物利用与处置工程技术(深圳)中心,广东深圳518049 [2]深圳市艾科尔特检测有限公司,广东深圳518172

出　　处：《化学研究与应用》2024年第2期361-366,共6页Chemical Research and Application

基　　金：打造深圳标准专项资金项目(2018FQZZ0122、zxzj20191113000096)资助。

摘　　要：准确测定含铜蚀刻废液中氟含量是含铜蚀刻废液中铜盐回收的关键,本文就含铜蚀刻废液中氟含量离子选择电极测定方法[1~3]进行探讨与验证。通过样品前处理与试验,离子选择电极一次标准加入法测定下限为0.9mg·L^(-1),离子选择电极标准曲线法测定下限为1.2 mg·L^(-1);两种方法的相对标准偏差在1.2%~1.7%,两种方法的加标回收率在77%~102%,满足工程应用要求。Accurate determination of fluorine content in copper-containing etching waste liquid is the key to recovery of copper salt in copper-containing etching waste liquid.This paper discusses and verifies the determination method of fluorine content in copper-containing etching waste liquid with ion-selective electrode.Through sample pretreatment and test,the lower limit of ion-selective e-lectrode one-time standard addition method was 0.9mg·L^(-1),and that of ion-selective electrode standard curve method was 1.2 mg·L^(-1).The relative standard deviations of the two methods are in the range of 1.2%~1.7%,and the recoveries of the two methods are in the range of 77%~102%,which meet the requirements of engineering application.

关 键 词：含铜蚀刻废液 氟离子选择电极 铜离子络合剂选择 空白扣除方式 累积加标 

分 类 号：O657[理学—分析化学]