中华医学超声杂志

应用化学 ›› 1990, Vol. 0 ›› Issue (6): 91-93.

• 研究简报 • 上一篇    

阳极溶出催化伏安法测定L-DOPA

金利通, 钱静汝, 方禹之   

  1. 华东师范大学化学系 上海 200062
  • 收稿日期:1989-12-29 修回日期:1990-06-09 出版日期:1990-12-10 发布日期:1990-12-10

CATALYTIC ANODIC STRIPPING VOLTAMMETRIC DETERMINATION OF L-DOPA

Jin Litong, Qian Jingru, Fang Yuzhi   

  1. Department of Chemistry, East China Normal University, Shanghai 200062
  • Received:1989-12-29 Revised:1990-06-09 Published:1990-12-10 Online:1990-12-10

PDF

498

摘要： 我们用Nafion修饰电极阳极溶出伏安法测定抗癌药左旋多巴(L-DOPA)获得了满意的结果[1]。本文报导由于Na2SO3对左旋多巴的催化氧化作用,可使测定灵敏度进一步提高,检测下限达5.0×10-8mol/L。

关键词: 左旋多巴, 阳极溶出分析法, 催化伏安法, Nafion修饰电极

Abstract: Determination of L-DOPA by anodic stripping voltammetry on Nafion modified glassy carbon electrode has been catalyzed and improved with addition of sodium sulfate. The optimum condition of determination is described. The variation coefficient of six parallel determinations was 3.83% and the detection limit was 5.0?1.0-8mol/L.The mechanism of the electrode reaction is briefiy discussed.

Key words: L-DOPA, anodic stripping analysis, catalytic voltammetry, Nafion modified electrode

网站版权 © 应用化学     本网站备案：吉ICP备12000082号