Studies with an inorganic ion-exchange membrane exhibiting selectivity for Pb(II) ions.
Studies with an inorganic ion-exchange membrane exhibiting selectivity for Pb(II) ions.
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研究显示对 Pb(II) 离子具有选择性的无机离子交换膜。
DOI：
10.1016/0039-9140(86)80172-2
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发表时间：
1986
期刊：
影响因子：
6.1
通讯作者：
C. Jain
中科院分区：
文献类型：
--
作者：
S. Srivastava;S. Kumar;C. Jain
以砷酸钛为膜材料、“Araldite”为粘合剂制成的固体膜电极已被用于测量浓度范围为0.1 M至5× 10− 6 M的铅的活度。电极不受许多阳离子、硝酸盐和乙酸盐的影响。在整个浓度范围内的响应时间为40-60秒（在静态系统中），电极的工作寿命至少为四个月。该电极可在pH 2-5范围内工作，对乙醇的耐受性可达30%v，已成功地用于铅的电位滴定终点指示。经阳离子表面活性剂处理的膜具有较好的选择性。
A solid membrane electrode made with titanium arsenate as membrane material and “Araldite” as binder has been used to measure the activity of lead in the concentration range from 0.1 M to 5× 10− 6 M. The electrode is unaffected by many cations, nitrate and acetate. The response time is 40–60 sec over the whole concentration range (in a static system) and the electrode has a working life of at least four months. The electrode can work in the pH range 2–5 and is tolerant of ethanol up to a content of 30% v v. It has been successfully used for end-point indication in potentiometric titration of lead. A membrane treated with cationic surfactant exhibits better selectivity.