CHEMICALLY MODIFIED FIELD-EFFECT TRANSISTORS - POTENTIOMETRIC AG+ SELECTIVITY OF PVC MEMBRANES BASED ON MACROCYCLIC THIOETHERS

被引：43

作者：

BRZOZKA, Z

COBBEN, PLHM

REINHOUDT, DN

EDEMA, JJH

BUTER, J

KELLOGG, RM

机构：

[1] UNIV TWENTE,DEPT ORGAN CHEM,POB 217,7500 AE ENSCHEDE,NETHERLANDS

[2] UNIV GRONINGEN,DEPT ORGAN CHEM,9700 AB GRONINGEN,NETHERLANDS

[3] UNIV TWENTE,MESA RES INST,7500 AE ENSCHEDE,NETHERLANDS

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 273卷 / 1-2期

关键词：

ION-SELECTIVE ELECTRODES; POTENTIOMETRY; CHEMFETS; MACROCYCLIC THIOETHERS; PVC MEMBRANES; SILVER;

D O I：

10.1016/0003-2670(93)80152-B

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A chemically modified field-effect transistor (CHEMFET) with satisfactory Ag+ selectivity is described. The potentiometric Ag+ selectivities of CHEMFETs with plasticized PVC membranes based on macrocyclic thioethers have been determined. All the macrocyclic thioethers tested showed silver response and a selectivity towards Ag+ and Hg2+ versus other interfering cations. The highest Ag+ selectivity was obtained for a 14-membered cyclic tetrathioether with an exocyclic methylene group.

引用

页码：139 / 144

页数：6

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