NOVEL PALLADIUM(II) SELECTIVE MEMBRANE ELECTRODE BASED ON 4-[(5-MERCAPTO-1,3,4-THIADIAZOL-2-YLIMINO)-METHYL]BENZENE-1,3-DIOL

被引：2
|
作者：
Mohammadi, Moslem [1 ]
Khodadadian, Mehdi [2 ]
Rofouei, Mohammad K. [1 ]
机构：
[1] Tarbiat Moallem Univ, Fac Chem, Tehran 3197937551, Iran
[2] Razi Univ, Fac Chem, Kermanshah 6714967346, Iran
来源：
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS | 2010年 / 75卷 / 05期
关键词：
Palladium(II); Ion selective electrodes; PVC membrane; Potentiometry; 4-[(5-Mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol; Electrochemistry; Electroanalysis; PLASMA-MASS SPECTROMETRY; ATOMIC-ABSORPTION-SPECTROMETRY; PLATINUM-GROUP ELEMENTS; ONLINE PRECONCENTRATION; OPTICAL SPECTROSCOPIES; SOLVENT-EXTRACTION; BULK OPTODES; SILICA-GEL; ION; SPECIATION;
D O I：
10.1135/cccc2009555
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A plasticized poly( vinyl chloride) membrane electrode based on 4-[(5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol (L) for highly selective determination of palladium(II) (in PdCl(4)(2-) form) is developed. The electrode showed a good Nernstian response (29.6 +/- 0.4 mV per decade) over a wide concentration range (3.1 x 10(-7) to 1.0 x 10(-2) mol l(-1)). The limit of detection was 1.5 x 10(-7) mol l(-1). The electrode has a response time of about 20 s, and it can be used for at least 2 months without observing any considerable deviation from Nernstian response. The proposed electrode could be used in the pH range of 2.5-5.5. The practical utility of the electrode has been demonstrated by its use for the estimation of palladium content in aqueous samples.
引用
收藏
页码：563 / 575
页数：13
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