学术探索
学术期刊
新闻热点
数据分析
智能评审

Iridium-dispersed carbon paste amino acid oxidase electrodes.

被引：16
作者：
Rivas, GA
Maestroni, B
机构：
[1] Dept. of Chemistry and Biochemistry, New Mexico State University, Las Cruces
[2] Depto. de Físico Quim., Facultad de Ciencias Químicas, Univ. Nacional de Córdoba, Córdoba
来源：
ANALYTICAL LETTERS | 1997年 / 30卷 / 03期
关键词：
biosensor; flow injection; amino acid; iridium; amino acid oxidase; amperometry; carbon paste electrodes; AMPEROMETRIC BIOSENSORS; ENZYME;
D O I：
10.1080/00032719708001796
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An amino acid biosensor based on the immobilization of L-or D-amino acid oxidase within an iridium-dispersed carbon paste electrode is described. The strong and preferential electrocatalytic activity of iridium towards hydrogen peroxide allows rapid measurements of amino acids at very low potentials where the possibilities of interferences are minimal. The detection limits, depending on the amino acid, are in the order of 10(-5) M. The influence of parameters such as flow rate, working potential, iridium and enzyme loadings are discussed.
引用
收藏
页码：489 / 501
页数：13
相关论文
共 13 条
[1]   MEDIATED AMPEROMETRIC BIOSENSORS FOR D-GALACTOSE, GLYCOLATE AND L-AMINO-ACIDS BASED ON A FERROCENE-MODIFIED CARBON PASTE ELECTRODE [J].
DICKS, JM ;
ASTON, WJ ;
DAVIS, G ;
TURNER, APF .
ANALYTICA CHIMICA ACTA, 1986, 182 :103-112
[2]   AMPEROMETRIC BIOSENSORS BASED ON AN APPARENT DIRECT ELECTRON-TRANSFER BETWEEN ELECTRODES AND IMMOBILIZED PEROXIDASES - PLENARY LECTURE [J].
GORTON, L ;
JONSSONPETTERSSON, G ;
CSOREGI, E ;
JOHANSSON, K ;
DOMINGUEZ, E ;
MARKOVARGA, G .
ANALYST, 1992, 117 (08) :1235-1241
[3]   ELECTRODE FOR DETERMINATION OF AMINO ACIDS [J].
GUILBAULT, GG ;
HRABANKOVA, E .
ANALYTICAL CHEMISTRY, 1970, 42 (14) :1779-+
[4]   AN L-AMINO ACID ELECTRODE [J].
GUILBAULT, GG ;
HRABANKOVA, E .
ANALYTICAL LETTERS, 1970, 3 (02) :53-+
[5]   AMPEROMETRIC ENZYME ELECTRODES .2. AMINO-ACID OXIDASE [J].
GUILBAULT, GG ;
LUBRANO, GJ .
ANALYTICA CHIMICA ACTA, 1974, 69 (01) :183-188
[6]  
IANIELLO RM, 1981, ANAL CHEM, V53, P2090
[7]   CHEMICALLY MODIFIED GRAPHITE ELECTRODE WITH IMMOBILIZED ENZYME AS A POTENTIOMETRIC SENSOR FOR SOME L-AMINO-ACIDS [J].
IANNIELLO, RM ;
YACYNYCH, AM .
ANALYTICA CHIMICA ACTA, 1981, 131 (NOV) :123-132
[8]   ENZYME REACTOR ELECTRODE FOR DETERMINATION OF AMINO-ACIDS [J].
JOHANSSON, G ;
EDSTROM, K ;
OGREN, L .
ANALYTICA CHIMICA ACTA, 1976, 85 (01) :55-60
[9]   AMPEROMETRIC BIOSENSORS FOR DETECTION OF L-AMINO AND D-AMINO ACIDS BASED ON COIMMOBILIZED PEROXIDASE AND L-AMINO AND D-AMINO-ACID OXIDASES IN CARBON-PASTE ELECTRODES [J].
KACANIKLIC, V ;
JOHANSSON, K ;
MARKOVARGA, G ;
GORTON, L ;
JONSSONPETTERSSON, G ;
CSOREGI, E .
ELECTROANALYSIS, 1994, 6 (5-6) :381-390
[10]  
LUBRANO GJ, 1974, ANAL CHIM ACTA, V97, P229
12