ANION EFFECTS ON DONNAN FAILURE OF AMINATED-POLY(VINYL CHLORIDE)-BASED AND NEUTRAL-CARRIER-BASED PH SENSORS

被引：37

作者：

BUCK, RP ^{[1
]}

COSOFRET, VV ^{[1
]}

LINDNER, E ^{[1
]}

机构：

[1] TECH UNIV BUDAPEST,INST GEN & ANALYT CHEM,H-1111 BUDAPEST,HUNGARY

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 282卷 / 02期

关键词：

SENSORS; POTENTIOMETRY; CARRIERS; DONNAN FAILURE; MEMBRANES; PH SENSORS; POLY(VINYL CHLORIDE);

D O I：

10.1016/0003-2670(93)80211-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Aminated poly(vinyl chloride)s (PVCs) and neutral carriers can produce nearly ideal pH sensors. However, they can show Donnan exclusion failure in low pH bathing solutions. These pH-sensitive PVC membranes illustrate a new dimension, not found for other mobile neutral-carrier-based sensors, i.e., Donnan failure produces fixed positive sites that create a nearly ideal anion sensor. The modification of Donnan theory is derived and illustrated using carrier-based and aminated-PVC-based sensors.

引用

页码：273 / 281

页数：9

共 47 条

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