高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 166.

• Electroanalytical Chemistry • 上一篇    下一篇

Selective Determination of Vitamin B2 at Electrochemically Activated Glassy Carbon Electrode

Kang Shi, Kwok-Keung Shiu   

  1. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China
  • 出版日期:1999-12-31 发布日期:1999-12-31

Selective Determination of Vitamin B2 at Electrochemically Activated Glassy Carbon Electrode

Kang Shi, Kwok-Keung Shiu   

  1. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China
  • Online:1999-12-31 Published:1999-12-31

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摘要：

Electrochemically activated glassy carbon electrodes were applied to the preconcentration and electroanalysis of Vitamin B2 (VB2) in multivitamin preparation. Voltammetric peak currents showed linear response for VB2 concentrations in the range between 0.1 to 3.0 M with a large slope of 12.2 AM-1 and a correlation coefficient of 0.996. The reproducibility of the voltammetric measurements was usually less than 7% RSD for five replicate measurements. Common vitamin and metal species did not interfere the determination.

Abstract:

Electrochemically activated glassy carbon electrodes were applied to the preconcentration and electroanalysis of Vitamin B2 (VB2) in multivitamin preparation. Voltammetric peak currents showed linear response for VB2 concentrations in the range between 0.1 to 3.0 M with a large slope of 12.2 AM-1 and a correlation coefficient of 0.996. The reproducibility of the voltammetric measurements was usually less than 7% RSD for five replicate measurements. Common vitamin and metal species did not interfere the determination.

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