鹰爪豆碱石墨涂膜电极的研制与应用

Preparation and Application of Graphite Coated-Membrande Cytisine Selective Electrode

本文介绍了四苯硼钠—鹰爪豆碱—石墨涂膜电极的制作与应用,实验结果证明,电极性能在10^(-2)～10^(-6)mol.L^(-1)浓度范围内符合Nernst方程,平均斜率为56mV,稳定性与选择性良好,可用电位滴定法和标准加入稀释法,直接对鹰爪豆碱进行定量测定,弥补了它目前还没有药典方法测定的空白.

This paper introduces the preparation and application of Cytisine- tetraphenylborate-graphite selective electrode. The experimental results show the perfomances of this electrode coincide with Nernst equation in the concentration range of 10-2-10-6mol·L-1The average value of slope is 56mV. The stability and selectivity of this electrode are in good state and the quantitative determination of Cytisine may be done by potentiometric titration and standard addition dilution methods, no method can be found in pharmacopoeia at present.