Electrochemical characteristics of VB6 were investigated at PBG modified electrode by Cyclic voltammetry and linear sweep voltammetry.The VB6 produced an irreversible oxidation peak at 0.978 V(Vs.SCE) in HAc-NaAc(pH=4.0) buffer solution over the potential range of 0.7 to 1.2 V.The electron number,the proton number,the transfer coefficient were determined to be 1,1 and 0.37,respectively.The oxidation peak currents of VB6 versus its concentration showed a linear relationship in the concentration range of 1×10-3~2×10-5mol/L with the correlation coefficient of 0.9967 and the detection limit of 2×10-6mol/L.The recovery was 100.06%.


vitamin B6, bromocresol green, modified electrode, electrochemistry

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[1]Wang Lian-peng(王连朋),Shen Yong-zhuang(申永壮),Liang Yun-ai(梁云爱).Study on quantitative a-nalysis of pyridoxine hydrochloride and its preparationby secondary derivative differential pulse polarography[J].Chemical Analysis and Meterage,2003,12(2):24.
[2]Yang Yu-jun(杨育军),Lv Xiao-hua(吕晓华),LiuKuai-zhi(刘快之),et al.On electrochemical qualityand determination of vitamin B6[J].Journal of Zheng-zhou University,2000,32(2):81.
[3]Gregory J,Dugal R.Determination of VB6by high per-formance liquid chromatography[J].J Food Chem,1991,39(5):899-905.
[4]Liang Yun-ai(梁云爱),Zhang Tian-min(张天民).Spectrophotometry application in the analysis of drug[J].Chinese J Medicinal Anal,1994,14(3):14-16.
[5]Li Xuan(李宣),Zhu Jun-jie(朱俊杰),Lu Zong-gui(卢宗桂).Determination of Vitamin B6by polarogra-phy[J].Pharmaceutics Bulletin,1986,21(2):77.
[6]Liang Yun-ai(梁云爱),Lin Dong-wen(林东文).Os-cillopolarographic determination of vitamin B6content[J].Chinese J Medicinal Anal,1989,9(1):132.
[7]Wan Qi-jin(万其进),Yu Jiu-hong(喻玖宏),YangNian-jun(杨年俊),et al.Differential pulse strippingvoltammetric determination of folic acid by polybromo-cresol green modified electrode[J].Journal of Analyti-cal Science,2002,18(2):174.
[8]Xu Xiu-qin(许秀琴),Cai Duo-chang(蔡铎昌),ZouRu-yi(邹如意),et al.Quantitative analysis of vitaminB6by cyclic voltammetry[J].Chinese J Appl Chem,2004,21(10):1017.
[9]Zhu Jun-jie,Gong Yue,Zhang Jin-jie,et al.Voltam-metric response of myoglobin at a modified silver elec-trode[J].Electroanalysis,2005,9(13):1030-1032.
[10]Zhang Zu-xun(张祖训),Wang Er-kang(汪尔康).Electrochemical principles and methods[M].Beijing:Science Press,2000.
[11]Bard A J,Faulkner L R.Electrochemical methodsfundamentals and applications[M].Beijing:ChemicalIndustry Press,2005.
[12]Virej C,Kauffmannj M,Braun J.Electrochemicalcharacteristics of a new type of non-steroidal anti-in-flammatory drug:the piroxicam[J].Analusis,1985,13(3):134-140.



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