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NAFION膜和锑膜修饰电极测定痕量铊和铟的研究 Abstract: Thispaperdiscussestheuseofmodifiedelectrodes,specificallyNafionandantimony-modifiedelectrodes,forthedetectionoftraceamountsofthalliumandindium.Theexperimentusedtechniquessuchascyclicvoltammetryandanodicstrippingvoltammetrytoanalyzeandmeasuretheconcentrationsoftheseelements.Theresultsshowedthatbothmodifiedelectrodeswereeffectiveindetectingtraceamountsofthalliumandindium,withtheNafion-modifiedelectrodedemonstratinghighersensitivityandalowerdetectionlimit.Thisstudycouldpotentiallybenefitindustriessuchasenvironmentalmonitoringandmetalextraction,amongstothers. Introduction: Thecontaminationoftheenvironmentwithheavymetalsisagrowingconcernforpeoplearoundtheworld.Metalssuchasthalliumandindiumposeasignificantthreattohumanhealthandtheenvironment,andthus,theirdetectionandquantificationisofutmostimportance.Inrecentyears,varioustechniquesandinstrumentshavebeendevelopedforthedetectionoftheseelements,andmodifiedelectrodeshaveemergedasaneffectivetoolforthispurpose. Theuseofmodifiedelectrodeshasshownimmensepotentialforthedetectionoftraceamountsofmetalsindifferentmatricessuchaswater,soil,andsediments.Thesemodifiedelectrodeshavebeenfoundtobesensitive,selective,andcost-effective.Nafionandantimony-modifiedelectrodesaretwotypesofmodifiedelectrodesthathavebeenusedforthedetectionofvariousheavymetals,includingthalliumandindium.Thesemodifiedelectrodeshavebeenfoundtobehighlysensitiveandeffectiveinthedetectionoftraceamountsofheavymetals. Methodology: TheaimofthestudywastouseNafionandantimony-modifiedelectrodestodetecttraceamountsofthalliumandindium.Themethodologicalstepsfollowedinthisstudywereasfollows: 1.PreparationofWorkingElectrodes: -Theworkingelectrodesfortheexperimentwerepreparedbypolishingthesurfaceofaglassycarbonelectrodewithaluminapowder,followedbywashingwithwaterandethanol. -TheNafion-modifiedelectrodewaspreparedbydippingtheglassycarbonelectrodeintoa0.02%Nafionsolutionfor2minutes,followedbydryinginair. -TheAntimony-modifiedelectrodewaspreparedbyelec