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The Analysis of Vitamin B_1,Vitamin B_2 and Vitamin B_C by Polarograph

LUO Xiang-gui1,CHEN Li-xin2,LIU Ting-ting2 (1 Hunan Machinery Research Institute,Hunan Changsha 410116;2 Department of Chemistry and Chemical Engineering,Hunan Institute of Engineering,Hunan Xiangtan 411104,China)  
Three vitamin components of Vitamin B1,Vitamin B2,and Vitamin BC,can be determined separately by using adsorptive polargraphic technique in the NaH2PO4-Na2HPO4 buffer solution system.The peak potential was Ep=-1.5 V(vs.SCE),Ep=-0.48 V(vs.SCE),and Ep=-0.90 V(vs.SCE),respectively.When the concentration of the three vitamin components was in the range of 1×10-4~6×10-2 mol/L,there was a good linear relationship between the peak current and the concentration of the three vitamin components,and its detection limit was 5×10-6 mol/L.
【Fund】: 湖南省教育厅科研基金(10C0555)
【CateGory Index】: R927.2;O657.14
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