Selective membrane sensors for free radical analysis based on potentiometric and CHEMFET devices

被引：14

作者：

Campanella, L ^{[1
]}

Favero, G ^{[1
]}

Occhionero, E ^{[1
]}

Tomassetti, M ^{[1
]}

机构：

[1] Univ Rome La Sapienza, Dept Chem, I-00185 Rome, Italy

来源：

ANALUSIS | 1998年 / 26卷 / 05期

关键词：

selective sensors; CHEMFET; superoxide radical analysis;

D O I：

10.1051/analusis:1998139

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present paper describes a completely new method for radical determination based on spin trapping reaction suitably adapted for the electrochemical determination of radical species. First of all benzylidenephenylnitrone was synthesized and then immobilised in a PVC-sebacate membrane. Lastly, this membrane was used to assemble different kinds of selective potentiometric sensors and CHEMFETs. These analytical devices were then used to determine free radical species, principally the anion superoxide radical and, in one case, also the hydroxide radical.

引用

页码：223 / 228

页数：6

共 14 条

[1] SUPEROXIDE DISMUTASE - IMPROVED ASSAYS AND AN ASSAY APPLICABLE TO ACRYLAMIDE GELS [J].

BEAUCHAM.C ;

FRIDOVIC.I .

ANALYTICAL BIOCHEMISTRY, 1971, 44 (01) :276-&

[2]

Campanella L, 1997, ANAL LETT, V30, P1611

[3] A modified amperometric electrode for the determination of free radicals [J].

Campanella, L ;

Favero, G ;

Tomassetti, M .

SENSORS AND ACTUATORS B-CHEMICAL, 1997, 44 (1-3) :559-565

[4]

CAMPANELLA L, 1990, ANN CHIM-ROME, V80, P395

[5] A STUDY ON SOLID-STATE PVC MEMBRANE ISES FOR CHOLATE ANALYSIS [J].

CAMPANELLA, L ;

SU, YS ;

CRESCENTINI, G ;

SAMMARTINO, MP ;

TOMASSETTI, M .

ANALYTICAL LETTERS, 1994, 27 (03) :429-452

[6]

CAMPANELLA L, 1996, CHEM TODAY MAR, P33

[7]

Carey FA, 1984, ADV ORGANIC CHEM

[8]

FRIDOVICH I, 1970, J BIOL CHEM, V245, P4053

[9] ONE-ELECTRON REACTIONS IN BIOCHEMICAL SYSTEMS AS STUDIED BY PULSE RADIOLYSIS .5. CYTOCHROME-C [J].

LAND, EJ ;

SWALLOW, AJ .

ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1971, 145 (01) :365-&

[10]

MASON RP, 1994, METHOD ENZYMOL, V233, P112

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