电镀铜镍合金镀液主盐金属离子浓度分析方法的研究

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1、南京理工大学硕士学位论文电镀铜镍合金镀液主盐金属离子浓度分析方法的研究姓名：刘庆华申请学位级别：硕士专业：应用化学指导教师：周伟良;陆慧峰20080501AbstractThedevelopmentofcupronickelplated吼e国coinisallimportantprojectforChinaBanknotep．nttingandMintingCorporation．Thisprojectissignificantforimprovementofmintingtechnology．OwingtOthesimilarcharacteris

2、ticsbetweencopper(Ⅱ+)andnickel(Ⅱ+)andtheirbigelectricpotentialdifference,theformationofhathsolutionisCOmPiex．Complexingasentsinbathsolutionwilldirectlyinfluencethecontentdetermination0fcopper(II+)andnickel(II+)，besides,somecomponentsinadditiveshavespecialinfluence011thecoIltell

3、tof的pper(Ⅱ+)andnickel(Ⅱ、which啪notbeig瑚we正Therefore,choosingamitablemethodtOassaythecontentofcopper(Ⅱ、nickel(Ⅱ+)andmainsaltsaccuratelyandquicklyhasbecomeanessentialDartoftheprojectforChinaBanknotePrintingandMintingCorporation。‘Inthis肼Ip％theaufllormadeaseriessystemmicexperimenton

4、standardsolution,platingbathSolutionbyusing’flameatomicspectrometry,chemicalanalysis,andelectrochemistrymethod．Bycomparingtheexperimentalresult,theauthorresearchthathowthecontentofcomplexingagentsinfluencetheresults‘ofdetermination．Theauthorascertainssuitableanalysiskitandparam

5、eters,analyzethemainfactorwhichwillinfluencetheresultofdetermination．，andputforwardawaytOdiminishore赡neliminateerror．Largeamountsofexperimentalresultsshowsthatthemethodsofusingflameatomicspectromet哆orchemicalanalysisstillhaveerror．However,thisissystemerror,whichcanbediminishedb

6、yemendationConsideringparallelexperimentsbydifferentperson,weamconcludethatbyadoptingthesetwom融峨theresultofcontentdeterminationofmetalionsisstable．Inotherwords,theerrorissmall．Therefore，thedeterminationresult11：byusingthesetwomethodswillnotleadtOmisjudgeofmetalionscontentinbath

7、SOlutib玛∞鹤弘，ciaIlysuitableforsampleanalysis(the伽积Ⅺ吡枷∞ofmainsaltsinplatingbathneedstObeanalyzedeverytwOhours)．Thesetwomethodc蚰heusedinon-lineassay,especiallyflameatomicspecm'ometrywhichisfasttOanalyze。easytOoperateandc锄calculatetheconcentrationofmainsaltsinaccordancewithdetermin

8、ationresult．so弱tOadjusttheformulationofb锄hsolutionandp