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高等学校化学研究 ›› 2003, Vol. 19 ›› Issue (3): 280-285.

• Articles • 上一篇    下一篇

Studies on Non-potentiometric Piezoelectric Sensor System for Determination of Vitamin B1

YUAN Jin-bin, NIE Li-hua, YAO Shou-zhuo   

  1. State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
  • 收稿日期:2002-07-02 出版日期:2003-08-24 发布日期:2011-08-06
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.20075007).

Studies on Non-potentiometric Piezoelectric Sensor System for Determination of Vitamin B1

YUAN Jin-bin, NIE Li-hua, YAO Shou-zhuo   

  1. State Key Laboratory of Chemo/Biosensing & Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
  • Received:2002-07-02 Online:2003-08-24 Published:2011-08-06
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.20075007).

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摘要： A piezoelectric sensor responsive to vitamin B1 was fabricated based on the vitamin B1-tetraphenylborate ion pair. The general performance characteristics of the sensor are presented here. The proposed sensor showed a wide working pH range, a good sensitivity and selectivity. The response range is between 1.0×10-7-4.9×10-5 mol/L with a detection limit of 8×10-8 mol/L at pH 4.0. The selectivity should be attributed to the preferential adsorption of the component ion on the membrane/solution interface. The adsorption behavior of vitamin B1 on the crystal surface was investigated with a quartz crystal impedance(QCI) system.

关键词: Piezoelectric sensor, Vitamin B1, Ion-pair complex

Abstract: A piezoelectric sensor responsive to vitamin B1 was fabricated based on the vitamin B1-tetraphenylborate ion pair. The general performance characteristics of the sensor are presented here. The proposed sensor showed a wide working pH range, a good sensitivity and selectivity. The response range is between 1.0×10-7-4.9×10-5 mol/L with a detection limit of 8×10-8 mol/L at pH 4.0. The selectivity should be attributed to the preferential adsorption of the component ion on the membrane/solution interface. The adsorption behavior of vitamin B1 on the crystal surface was investigated with a quartz crystal impedance(QCI) system.

Key words: Piezoelectric sensor, Vitamin B1, Ion-pair complex