Enzymatic Determination of Ethanol Using ‘Reagentless’ Electrocatalyzed Luminol Chemiluminescence
作者:
JamesE. Atwater,
JamesR. Akse,
Jeffrey DeHart,
RichardR. Wheeler,
期刊:
Analytical Letters
(Taylor Available online 1997)
卷期:
Volume 30,
issue 8
页码: 1445-1453
ISSN:0003-2719
年代: 1997
DOI:10.1080/00032719708001666
出版商: Taylor & Francis Group
关键词: reagentless;chemiluminescence;electrocatalyzed;luminol;ethanol
数据来源: Taylor
摘要:
Flow analysis methodology is presented for the determination of aqueous ethanol in concentrations between 3–340 μM. Alcohol oxidase catalyzes the production of hydrogen peroxide which is detected by luminol chemiluminescence. Adjustment of the pH to alkaline conditions and addition of the luminophore are implemented using in-line flow-through beds containing crystalline media. The requirement for a homogeneous catalyst is eliminated by electrochemical initiation of luminescence. Traditional laboratory reagents are replaced by packed beds containing immobilized enzyme, solid phase basification media, and crystalline luminol. The methodology is suitable for application in both continuous flow and flow injection analysis configurations.
点击下载:
PDF (304KB)
返 回