应用化学 ›› 1991, Vol. 0 ›› Issue (2): 82-86.

• 研究简报 • 上一篇    下一篇

氟哌啶醇的示差脉冲吸附伏安法测定

彭图治, 杨忠萍, 吕荣山   

  1. 杭州大学化学系, 杭州 310028
  • 收稿日期:1990-03-14 修回日期:1990-07-16 出版日期:1991-04-10 发布日期:1991-04-10

DIFFERENTIAL PULSE ADSORPTIVE VOLTAMMETRIC DETERMINATION OF HALOPERIDOL

Peng Tuzhi, Yang zhongping, Lu Rongshan   

  1. Department of Chemistry, Hangzhou University, Hangzhou 310028
  • Received:1990-03-14 Revised:1990-07-16 Published:1991-04-10 Online:1991-04-10

摘要: 氟哌啶醇,化学名4-[4-基-4-(4-氯苯)-4-羟基派啶]-4'-氟丁酰苯,是一种重要的抗精神病药[1]。该药物的测定主要采用紫外光度法[2],其他尚有气相和薄层色谱法[3,4],荧光法[5]等。但灵敏度都不够高,难以用于微量和痕量分析,特别是病人体液中含量的监测。Bishop等发现,氟哌啶醇在金和铂电极上既不还原也不氧化,认为这种药物在上述电极上不具有电活性[6]。本文发现氟哌啶醇能吸附于玻碳电极,并发生氧化反应。据此拟定了吸附伏安法测定该药物的方案,并研究了药物在玻碳表面的吸附行为。

关键词: 吸附, 溶出伏安法, 对氯苯基羟基哌啶基丙基对氟苯甲酮

Abstract: An adsorptive voltammetric determination of neuroleptic drug haloperidol, is described.The drug adsorbed on the glassy carbon electrode gave an anodic stripping peak at about+0.73V(vs.Ag/AgCl) in Britton-Robinson buffer (pH = 9).The response is linear in con-centration range of 1×10-9~1×10-7 g/mL with a detection limit of 5×10-10 g/mL after 10 minaccumulation.The scheme of open circuit preconcentration/medium exchange/stripping vol-tammetry is used to determine the drug in urine sample without preisolation.It is demons-trated that the adsorption of haloperidol on glassy carbon surface obeys Frumkin's isothermequation.

Key words: Haloperidol, chlorophenyl p-hydroxy piperidinyl fluorobutyrophenone, adsorption, stripping voltammetry