钙离子选择性双管复合微电极的研制

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (8): 677.

钙离子选择性双管复合微电极的研制

庄云龙, 周剑平, 漆德瑶

上海工业大学分析化学教研室

收稿日期:1984-08-02 出版日期:1985-08-24 发布日期:1985-08-24

Development of Double-Barrelled Calcium Ion-Selective Microelectrode

Zhuang Yunlong, Zhou Jianping, Qi Deyao

Department of Analytical Chemistry, Shanghai University of Technology Shanghai

Received:1984-08-02 Online:1985-08-24 Published:1985-08-24

摘要/Abstract

摘要： 本文研制的钙离子选择性双管复合微电极尖端直径小至2.5μm,特别适用于活体组织细胞及临床微量试样中钙离子浓度的测定。用该电极测量了人体微量试样中钙离子浓度,并观察了大白鼠及家免心肌组织受激时钙离子活度的动态变化。

Abstract: Anew PVCmatrix membrane double-barrelled calcium ion-selective microelec-trodc based on liquid ion exchanger has been designed and constructed. The tip diameter of about 2.5μm as well as lower selectivity coefficients for K⁺, Na⁺ and Mg²⁺ are adequate for intracellular measurements of Ca²⁺ activities.The inner wall of the selective channel was made by hydrophobic treatment with alcohols. By means of this microelectrode some physiological phenomena related to Ca²⁺ activities have been studied, and Ca²⁺ concentrations in clinical microsamples have also been determined.

TrendMD:

庄云龙, 周剑平, 漆德瑶. 钙离子选择性双管复合微电极的研制. 高等学校化学学报, 1985, 6(8): 677.

Zhuang Yunlong, Zhou Jianping, Qi Deyao . Development of Double-Barrelled Calcium Ion-Selective Microelectrode. Chem. J. Chinese Universities, 1985, 6(8): 677.