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Application of a new phosphadithiamacrocycle to ClO−4-selective CHEMFET and ion-selective electrode devices

✍ Scribed by J. Casabó; L. Escriche; C. Pérez-Jiménez; J.A. Muñoz; F. Teixidor; J. Bausells; A. Errachid

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
472 KB
Volume
320
Category
Article
ISSN
0003-2670

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✦ Synopsis

A new dithiamacrocycle incorporating a phosphine donor group (I) has been synthesized and tested as neutral carrier in PVC membranes. CIO,-selective CHEMFET and ISE devices based on these plasticized membranes have been developed. Both devices have shown Nemstian response and a wide working pH range. Most common anions, except BFC, do not cause interferences. The response properties and selectivity found for perchlorate ions compare favourably with the commercial and conventional Cloy electrodes based on quatemary ammonium ion-exchange sites. This is probably the first example of perchlorate selective CHEMFETs.

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✍ J.-M. Séquaris; P. Kalabokas 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 552 KB

The analytical application of an iodide solid-state ion-selective electrode is described for the titration, in the low mg 1-i range, of polyanions with hexadecylbenzyldimethylammonium chloride, a cationic surfactant. Reliable calibration graphs were obtained at concentrations up to 10 mg 1 -'. The f