Salicylate Ion-Selective Electrode Based on New Tetranuclear Copper Complexes of <i>O</i>-Vannlin-methionine as Neutral Carriers
-
- YE Guangrong
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
-
- CHAI Yaqin
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
-
- RUO Yuan
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
-
- ZHOU Lu
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
-
- LI Yan
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
-
- ZHANG Lina
- Chongqing Key Laboratory of Analytical Chemistry, College of Chemistry and Chemical Engineering, Southwest University
Bibliographic Information
- Other Title
-
- Salicylate Ion-Selective Electrode Based on New Tetranuclear Copper Complexes of O-Vannlin-methionin as Neutral Carriers
- Salicylate Ion-Selective Electrode Based on New Tetranuclear Copper Complexes of O-Vannlin-methionine as Neutral Carriers
Search this article
Abstract
A new salicylate-selective PVC membrane electrode based on a new Schiff base tetranuclear copper complex of O-vannlin-methionine (Cu(II)4-TVM) as a neutral carrier is described. This electrode displays a preferential potentiometric response to salicylate and an anti-Hofmeister selectivity sequence in the following order: Sal- > ClO4- > SCN- > I- > NO2- > NO3- > Br- > Cl- > SO32- > SO42- > H2PO4-. The electrode exhibits near-Nernstian potential linear range of 1.5 × 10-6 - 1.0 × 10-1 M with a detection limit of 8.0 × 10-7 M and a slope of -56.3 mV/decade in pH 3.0 - 8.0 of phosphorate buffer solution at 20°C. Thanks to the tetranuclear copper(II) in the carrier, the electrode has the advantages of simplicity, fast response, fair stability and reproducibility and low detection limit. The response mechanism to the electrodes is discussed by the a.c. impedance technique and the UV spectroscopy technique. The electrode can be applied to analyses of medicine and the results obtained are in fair agreement with the results given by a standard method.
Journal
-
- Analytical Sciences
-
Analytical Sciences 23 (2), 171-176, 2007
The Japan Society for Analytical Chemistry
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282679234793216
-
- NII Article ID
- 10018497507
-
- NII Book ID
- AA10500785
-
- COI
- 1:STN:280:DC%2BD2s%2FpvVaqtw%3D%3D
-
- ISSN
- 13482246
- 09106340
-
- NDL BIB ID
- 8628818
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed