Thick-film multichannel biosensors for simultaneous amperometric and potentiometric measurements

被引：11

作者：

Silber, A ^{[1
]}

Bisenberger, M ^{[1
]}

Brauchle, C ^{[1
]}

Hampp, N ^{[1
]}

机构：

[1] UNIV MUNICH,INST PHYS CHEM,D-80333 MUNICH,GERMANY

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1996年 / 30卷 / 02期

关键词：

amperometric measurements; multichannel biosensors; potentiometric measurements;

D O I：

10.1016/0925-4005(95)01759-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A seven-channel multibiosensor for simultaneous amperometric and potentiometric operation is described. The transducer is fabricated by screen-printing techniques in thick-film technology and contains 14 gold electrodes, which act as working and counter electrodes, and one silver electrode, which is chlorinated to give an integrated silver/silver chloride reference electrode. The ion-selective membranes are based on a poly(vinyl chloride)-poly( vinyl acetate) copolymer. Entrapment of enzymes is achieved by membranes made from organic-solvent-free aqueous polymer dispersions, which can be applied to the sensor electrodes by screen-printing or solder dispenser systems. The sensor is integrated into a flow-injection-analysis (FIA) system and is applied to the analysis of blood serum electrolyte (K+, Li+) and metabolite (glucose, urea, lactate) status.

引用

页码：127 / 132

页数：6

共 16 条

[1]

BECHTOLD F, 1989, TECH MESS, V56, P264

[2] POTENTIOMETRIC THICK-FILM SENSOR FOR THE DETERMINATION OF THE NEUROTRANSMITTER ACETYLCHOLINE [J].