CHEMILUMINOMETRIC HYDROGEN-PEROXIDE SENSOR FOR FLOW-INJECTION ANALYSIS

被引：32
|
作者：
PREUSCHOFF, F
SPOHN, U
BLANKENSTEIN, G
MOHR, KH
KULA, MR
机构：
[1] UNIV HALLE,INST BIOTECHNOL,WEINBERGWEG 16A,D-06120 HALLE,GERMANY
[2] UNIV DUSSELDORF,KFA JULICH GMBH,FORSCHUNGSZENTRUM,INST ENZYMTECHNOL,W-5170 JULICH,GERMANY
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 346卷 / 10-11期
关键词：
D O I：
10.1007/BF00322752
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A chemiluminometric hydrogen peroxide sensor was developed for fast flow injection analysis. Different peroxidases were covalently immobilized on affinity membranes and compared with respect to the catalytic luminol oxidation. A photomultiplier tube is connected with a fibre bundle to the flow cell. The small cell volume of 5-10 mul allows sampling rates between 90 and 200/h, depending on the flow rate. The highest sensitivity and the best long-term stability can be achieved with microbial peroxidase. Hydrogen peroxide can be determined in the range between 10(-3) and 10(-8) mol/l with a precision of < 3% (n = 6, alpha = 0.05). The operational stability of the sensor is longer than 10 weeks.
引用
收藏
页码：924 / 929
页数：6
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