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《Guangdong Trace Elements Science》 2007-01
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Electrochemiluminescence Determination of Pb(Ⅱ) at a Disposable CarbonFilm Electrode

XIONG Haitao (Department of Chemistry,Shaanxi University of Techonology,Hanzhong 723001,China)  
A novel electrochemiluminescence method for the determination of Pb(Ⅱ) at a disposable carbon-film electrode was developed,based its enhancing effect for the weak ECL signal of electro-oxidation Luminol in the mixing solution of the 7-I-8-H2QS with NaOH-borax buffer.Under the optimized comditions,the relative ECL signals responsed linearly to the concentration of Pb(2+) from 2.0×10(-8) to 2.0×10(-6) g/mL with a limit detection 6.0×10(-9) g/mL.And the relative standard deviation was 4.8%[ρ(Pb(2+))=2.0×10(-7) g/mL,n=11].
【Fund】: 陕西理工学院硕士专项基金(SLGQD0510)
【CateGory Index】: O657.1;O614.433
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