Abstract
An analytical method is described for the determination of the organophosphorus pesticides diazinon and propetamphos in water and in sewage, at levels ranging from 0.01-1.0 mg/L. The method involves solid phase extraction using C-18 Bond Elut cartridges, elution with ether, and solvent change to hexane. Quantification of the pesticide is by temperature programmed capillary gas chromatography using a nitrogen—phosphorus detector. Recoveries of diazinon are between 98-102% from water and between 70-80% from activated sludge biomass. These results are compared with a more polar organophosphate, propetamphos, for which the recovery from both water and biomass is close to 100%.
| Original language | English |
|---|---|
| Pages (from-to) | 93-103 |
| Number of pages | 11 |
| Journal | International Journal of Environmental Analytical Chemistry |
| Volume | 54 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Jan 1994 |
| Externally published | Yes |
Keywords
- Diazinon
- gas chromatography with nitrogen-phosphorus detection
- mass balance
- organophosphate pesticide
- propetamphos
- sewage
- solid-phase extraction
- water