无机离子交换膜的研究。

Studies with inorganic ion-exchange membranes.

作者信息

Srivastava S K, Jain A K, Agrawal S, Singh R P

机构信息

Chemistry Department, University, Roorkee, India.

出版信息

Talanta. 1978 Mar;25(3):157-9. doi: 10.1016/0039-9140(78)80105-2.

DOI:10.1016/0039-9140(78)80105-2

PMID:18962228

Abstract

The pyridinium molybdoarsenate membrane shows a response to pyridinium ions and can be used to determine the concentration of these ions in the range 10(-3)-1M. The potentials generated across the membrane are reproducible and the response time is less than 1 min. There is no interference from certain inorganic and organic ions. The electrode can be used in the pH range 3-6 as well as in non-aqueous medium. Small additions of cetyltrimethylammonium bromide cause large shifts in the membrane potentials. A membrane, after being treated with this surfactant, shows a wider range of response to pyridinium ions. Precipitation titration of pyridinium nitrate has been monitored by using this membrane electrode.

摘要

吡啶钼砷酸盐膜对吡啶离子有响应，可用于测定浓度范围为10⁻³ - 1M的这些离子。跨膜产生的电位具有可重复性，响应时间小于1分钟。某些无机和有机离子不会产生干扰。该电极可在pH值范围3 - 6以及非水介质中使用。少量添加十六烷基三甲基溴化铵会导致膜电位发生大幅变化。用这种表面活性剂处理后的膜对吡啶离子的响应范围更广。已使用该膜电极监测硝酸吡啶的沉淀滴定。