中华医学超声杂志

应用化学 ›› 1991, Vol. 0 ›› Issue (4): 93-95.

• 研究简报 • 上一篇    下一篇

伏安法同时测定维生素K1和K3

王丽增1, 许杨1, 陈荣礼1, 叶萍2   

  1. 1. 山东大学应用化学系, 济南 250100;
    2. 山东省地方病防治研究所, 济南
  • 收稿日期:1990-08-21 修回日期:1990-12-24 出版日期:1991-08-10 发布日期:1991-08-10

VOLTAMMETRIC DETERMINATION OF VITAMIN K1 AND K3

Wang Lizeng1, Xu Yang1, Chen Rongli1, Ye Ping2   

  1. 1. Department of Applied Chemistry, Shandong University, Jinan 250100;
    2. Institute of Endemic Disease, Shandong Province, Jinan
  • Received:1990-08-21 Revised:1990-12-24 Published:1991-08-10 Online:1991-08-10

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摘要： 维生素 K1(VK1)和维生素K3(VK3)是使血液凝聚的必要成分,常用光化学法[1],现代极谱法[2-3]等测定。用伏安法同时测定VK1和VK3迄今未见报导。我们发现在0.0mol/L Na2SO4底液中,当pH=4.0～4.3时,VK1在悬汞电极上发生较强的吸附并还原,而当底液的pH为17.0～1.85时,VK3在汞电极上还原。

关键词: 伏安法, 维生素K1, 维生素K3

Abstract: Vitamin K1 (VK1) and K3 (VK3) were determined simutaneously by adsorption voltam-metry in 0.04 mol/L Na2SO4 solution.The peaks of derivative waves were obtained at - 0.09V(SCE) for VK1 in solution with pH= 4.0～4.3 and at - 0.65V for VK3 when pH= 1.70～1.85.The peak currents were directly proportional to the concentrations of VK1 and VK3 overthe ranges of 1.0×10-9～8.0×10-7 mol/L and 6.0×10-10～8.0×10-7 mol/L respectively.The method has been used for determination of VK1 and VK3 in some traditional Chinesemedicines.

Key words: voltammetry, vitamin K1, vitamin K3

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