Abstract
Using a Clark-type oxygen electrode as sensor, a highly sensitive enzymatic assay method for hypoxanthine was developed, based on xanthine oxidase. The sensitivity of the assay is comparable to that of standard chemiluminescent techniques. The incorporation of sulfite, 0 to 150 mM, allowed hypoxanthine determination over the range of 5 nM to 100 μM. The response time was 4 min or less at 30°C.
Original language | English |
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Pages (from-to) | 2433-2443 |
Number of pages | 11 |
Journal | Analytical Letters |
Volume | 22 |
Issue number | 11-12 |
DOIs | |
State | Published - 1989/01 |
Keywords
- Hypoxanthine
- oxygen electrode
- sulfite
- xanthine
- xanthine oxidase assay
ASJC Scopus subject areas
- Analytical Chemistry
- Biochemistry
- Spectroscopy
- Clinical Biochemistry
- Biochemistry, medical
- Electrochemistry