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1、ElectronicSupplementaryMaterial(ESI)forRSCAdvances.Thisjournalis?TheRoyalSocietyofChemistry2015ASensitiveElectrochemicalSensorforDirectDeterminationofPhoximinFoodSamplesBasedonElectrodepositionofReducedGrapheneOxide-GoldNanocompositeonGlassCarbonElectr

2、odeYuhongZheng1,LiFu1,2*,AiwuWang3,WenCai4SupplementaryMaterialsFigureS1.Molecularformulaofphoxim.FigureS2.PulsedelectrodepositionmodeforthedepositionofRGOonGCE.FigureS3.SEMimageofRGO/Aunanocompositewithlowermagnification.FigureS4.Apossibleelectrochemi

3、calreactionmechanismofphoximattheRGO/Au/GCE.TableS1.ComparisonoftheanalyticalperformanceofRGO/Au/GCEwithpreviouslyreportedphoximdeterminationmethod.MethodLOD(μM)Linearrange(μM)ReferenceAChE/ZrO2/CHIT/GCE1.36.6-4401Graphene/GCE0.0080.02-22P3MT/NGE/GCE0.

4、00640.2–2.03RGO/Au/GCE0.0030.01–10ThisworkTableS2.SummaryofinterferencestudyofphoximdeterminationusingRGO/Au/GCE.InterferencespeciesRSD(%)InterferencespeciesRSD(%)Na+0.66Ascorbicacid4.18Zn2+1.20Uricacid2.01Fe3+3.66Malathion1.45Ca2+1.02Methylisofenphos0

5、.86K+0.56Thimet1.44Mg2+0.22Methamidophos2.09Glutamicacid1.45Parathion4.33Glucose3.02Methylparathion4.571.Y.Yang,M.Guo,M.Yang,Z.Wang,G.ShenandR.Yu,InternationalJournalofEnvironmentalAnalyticalChemistry,2005,85,163-175.2.M.ChaoandM.Chen,FoodAnal.Methods,

6、2014,7,1729-1736.3.L.Wu,W.Lei,Z.Han,Y.Zhang,M.XiaandQ.Hao,SensorsandActuatorsB:Chemical,2015,206,495-501.