NEW NEUTRAL CARRIER-BASED H+ SELECTIVE-MEMBRANE ELECTRODES

被引：77

作者：

COSOFRET, VV ^{[1
]}

NAHIR, TM ^{[1
]}

LINDNER, E ^{[1
]}

BUCK, RP ^{[1
]}

机构：

[1] UNIV N CAROLINA,DEPT CHEM,CHAPEL HILL,NC 27599

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 327卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(92)80142-Q

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

H+-selective membrane electrodes based on two neutral ion carriers of the class of phenoxazine derivatives which contain different lipophilic imino chains (9-(diethylamino)-5-octadecanoylimino-5H-benzo[a]phenoxazine and 9-(dimethylamino)-5-[4-(16-butyl-2,14-dioxo-3,15-dioxaeicosyl)phenylimino]-5H-benzo[a]phenoxazine respectively) are described. Both ionophores, previously used as chromo-ionophores in optode construction, with added potassium tetrakis(p-chlorophenyl) borate (KTpClPB) as cation exchanger sites were embedded into a high molecular weight poly(vinyl chloride) matrix containing o-nitrophenyl octyl ether (o-NPOE) as plasticizer. Both polymeric pH electrodes exhibited near -Nernstian responses over the ranges depending on the pK of the ionophore within the membrane used as electroactive material. The selectivities and other main characteristics of the electrodes are presented.

引用

页码：137 / 146

页数：10

共 32 条

[1] NEUTRAL CARRIER BASED HYDROGEN-ION SELECTIVE MICROELECTRODE FOR EXTRACELLULAR AND INTRACELLULAR STUDIES [J].