高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (9): 1207.

• 研究论文 • 上一篇    下一篇

琥珀酰胆碱离子在水/邻硝基苯甲醚界面的伏安行为及其离子电极的研究

范瑞溪, 周明庚, 崔涛, 狄俊伟   

  1. 苏州大学化学系, 苏州 215006
  • 收稿日期:1992-09-30 修回日期:1993-04-15 出版日期:1993-09-24 发布日期:1993-09-24
  • 通讯作者: 范瑞溪
  • 作者简介:第一作者:男, 61岁, 教授.

Study of Voltammetric Behaviour at Water/ο-Nitroanisole Interface and Ion Selective Electrode for Succinylcholine Ion

FAN Rui-Xi, ZHOU Ming-Geng, CUI Tao, DI Jun-Wei   

  1. Department of Chemistry, Suzhou University, Suzhou, 215006
  • Received:1992-09-30 Revised:1993-04-15 Online:1993-09-24 Published:1993-09-24

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摘要： 由于琥珀酰胆碱离子(Sch2+)在水(w)和邻硝基苯甲醚(NA)界面的传递半积分半微分循环伏安波与常规新极谱波的特性相似,测定了Δwoφ1/2、响应斜率、n和DSchw2+.据此制备了以四苯硼琥珀酰胆碱[Sch(TPB)2]为活性材料、邻硝基苯甲醚和邻苯二甲酸二丁酯(DBPH)为混合溶剂的Sch2+-PVC液膜电极.电极特性与Sch2+离子在w/NA界面传递所预示的结果相似.试验了电极对某些离子的选择性系数和回收率.

关键词: 琥珀酰胆碱, 油/水界面电解, 离子选择性电极, 新极谱法

Abstract: In the system of 1 mol/L MgCl2 (w)-0.01 mol/L TBATPB(NA), the “potential window” of the polarized interface was shifted about 200 mVto the anodic potential as compared with nitrobenzene used as oil phase.For succinylcholine ion, the characteristics of semi-integral and semi-differential cyclic voltammograms were similar to those of normal neopolarograms.Δwoφ1/2.Nernst slope, n and DSchw2+ are 110 mV, 28.2 mV, 2 and 2.3×10-6cm2/s, respectively.The properties of ISEfor succinylcholine ion prepared from Sch(TPB)2 and the solvent mixed ο-nitroanisole and dibutylphthalate are the same as those of ITIESof succinylcholine ion.These results prove that the boundary potential difference of the electrode is due to the diffusion and transfer of succinylcholine ion at PVCinterface.The linear range is from 4.0×10-6 to 1.0×10-3 mol/Land the detection limit is 2.0× 10-6 mol/L.

Key words: Succinylcholine, Electrolysis at oil/water interface, Ion selective electrode, Neopo-larography

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