测量膜电位的一种简易方法  

A simple method to measure membrane potential

作　　者：谢银月[1] 金伟民[2] 

机构地区：[1]上海医疗器械高等专科学校基础教学部,上海200093 [2]浙江师范大学科技处,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2011年第2期168-170,共3页Journal of Zhejiang Normal University:Natural Sciences

基　　金：2009年度上海市教委重点课程建设立项项目(17115223);上海医疗器械高等专科学校教改项目(A26000836K)

摘　　要：分析了膜电位的测量原理,设计了用电位差计测量膜电位的实验,生物膜采用自制的蛋膜.实验表明:当蛋膜两侧氯化钾溶液浓度的比值增大时,膜电位随之增大,膜电位的大小与膜两侧氯化钾溶液浓度比值的对数线性相关,但两者并不满足能斯特方程.It was analysed the principle of measuring membrane potential and designed an experiment to measure membrane potential by potential difference meter.The membrane was made of eggshell membrane.The experiment showed that the membrane potential increased when the ratio of the concentration of the potassium chloride solution on both sides increased,and there was a linear relation between the membrane potential and the logarithm of this ratio,but they did not follow the Nernst equation.

关 键 词：电位差计 测量 膜电位 能斯特方程 

分 类 号：O433[机械工程—光学工程]