Potentiometric Micro Determination of Some Metal Ions Using Chloranilate PVC Matrix Membrane Electrodes.
作者:
M.A.F. Elmosallamy,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 3
页码: 475-487
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708001795
出版商: Taylor & Francis Group
关键词: Chloranilate ion selective electrodes;solvent mediators;potentiometric titration;metal ion determination
数据来源: Taylor
摘要:
Chloranilate PVC matrix membrane electrodes have been developed. These are based on the use of aliquat-chloranilate ion pair in plasticized PVC matrices. The calibration slope is about 60 mV/decade. The limit of detection is about 10−5M, the working pH range is 5-10, the electrodes have been used in the determination of lead, mercury, and cadmium ions with chloranilic acid, separately and in binary mixtures. 2-Nitro phenyl octyl ether, 2- nitro phenyl phenyl ether, dioctyl phthalate, dioctylsebacate, dioctyl phenyl phosphonate plasticizers are used; there were no significant differences in the performance characteristics of membranes for the various plasticizers. The life time of the electrodes is greater than one month.
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