181HEDP镀铜溶液中聚乙二醇6000含量的测定杨志业,崔恩状,王进军,李阳,邱媛(沈阳飞机工业(集团)有限公司,辽宁沈阳110850)[摘要]采用碘沉淀⁃分光光度法对羟基乙叉二膦酸(HEDP)镀铜溶液中聚乙二醇6000含量的测定进行了研究。结果表明:HEDP镀铜溶液中铜离子会与碘反应干扰测量结果,采用草酸屏蔽铜离子后,可以准确测定HEDP镀铜溶液中聚乙二醇6000含量,标准回收率为98.08%~99.12%,加标回收率为98.24%~98.80%,测定方法误差满足生产控制要求。[关键词]HEDP镀铜;无氰镀铜;聚乙二醇;分光光度法;测定[中图分类号]O657[文献标识码]Bdoi:10.16577/j.issn.1001-1560.2023.0075[文章编号]1001-1560(2023)03-0181-02DeterminationofContentofPolyethyleneGlycol6000inHEDPCopperPlatingSolutionYANGZhi⁃ye,CUIEn⁃zhuang,WANGJin⁃jun,LIYang,QIUYuan(AVIC,Shenyang110850,China)Abstract:Thecontentofpolyethyleneglycol6000inHydroxyethylidenediphosphonicacid(HEDP)copperplatingsolutionwasdeterminedandstudiedbyiodineprecipitation⁃spectrophotometry.ResultsshowedthatthecopperionsinHEDPcopperplatingsolutionreactedwithiodineandinterferedwiththemeasurementresults.Aftershieldingcopperionswithoxalicacid,thecontentofpolyethyleneglycol6000inHEDPcop⁃perplatingsolutioncouldbeaccuratelydetermined.Thestandardrecoveryratewas98.08%~99.12%,andtherecoveryrateofspikingwas98.24%...