Abstract
A solid-state fibre-optic luminescent oxygen sensor was used for flow-through measurements. It acts as a transducer in a new flow-cell enzyme sensor arrangement. This arrangement comprises a flow path, sample injector, microcolumn with the immobilized enzyme, oxygen membrane and fibre-optic connector joined together to form an integral unit. Lacease enzyme was used as a recognition system which provided specific oxidation of the substrates with the dissolved oxygen being monitored. The assay procedure was optimized and performance of the new system studied. The sensor was applied to the determination polyphenol content in tea, brandy, etc. (quality control test). The sensitivity to some important phenolic compounds was tested with the view of industrial wastewater control applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1505-1518 |
| Number of pages | 14 |
| Journal | Analytical Letters |
| Volume | 26 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 1993 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Keywords
- Chlorophenols
- FIA
- Fibre-optic
- Lacease
- Oxygen
- Phosphorescence
- Polyphenols
- Sensor
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