An Evaluation of Microextraction/Capillary Column Gas Chromatography for Monitoring Industrial Outfalls
| Autor: | John Stefanovski, Daniel R. Thielen, Gary. Olsen, John Chodkowski, Edward Bajor, Abram. Davis |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Chromatography
Gas Chromatography Hydrogen compounds Sewage Chemistry Water pollutants Outfall Industrial Waste General Medicine United States Analytical Chemistry Wastewater Capillary column Water Pollutants Sample preparation Gas chromatography United States Environmental Protection Agency Volatility (chemistry) Water Pollutants Chemical |
| Zdroj: | Journal of Chromatographic Science. 25:12-16 |
| ISSN: | 1945-239X 0021-9665 |
| DOI: | 10.1093/chromsci/25.1.12 |
| Popis: | Microextraction and capillary-column gas chromatography techniques are applied to plant discharge streams for repetitive wastewater discharge permit analyses. This combination allows the analyst to reduce sample preparation since microextraction replaces both purge-and-trap for volatiles and microextraction for semi-volatiles. An additional advantage is the elimination of a concentration step, which is often a major contributor to low method recoveries. The overall procedure is shown to be more precise than purge-and-trap but slightly less precise than conventional extraction. The results of each method are shown to be equivalent. |
| Databáze: | OpenAIRE |
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