Analytical Method for Dimethenamid-P in Selected Raw Agricultural Commodities by Gas Chromatography with Electron Capture Detection
| Autor: | Jennifer L Basile, Kim A. Anderson, Eugene R. Johnson |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Pharmacology
Detection limit Agricultural commodity Chromatography Resolution (mass spectrometry) Electron capture Extraction (chemistry) Analytical Chemistry chemistry.chemical_compound Electron capture detector chemistry Environmental Chemistry Dimethenamid Gas chromatography Agronomy and Crop Science Food Science |
| Zdroj: | Journal of AOAC INTERNATIONAL. 88:1428-1432 |
| ISSN: | 1944-7922 1060-3271 |
| DOI: | 10.1093/jaoac/88.5.1428 |
| Popis: | A sensitive and simple method for the extraction and quantification of the herbicide dimethenamid-P from several raw agricultural commodities (RAC) is presented. The method provides sensitive and well-defined chromatography with baseline resolution in all matrixes tested. Homogenized samples were extracted with methanol–water, filtered, and then extracted with hexanes. A Florisil solid-phase extraction was then applied for the final cleanup. Sample separation and quantification were performed by gas chromatography with an electron capture detector. The instrument detection limit was 0.007 μg/mL, and the practical quantification limit was 0.003 μg/g (w/w) based on a 25 g sample. Recoveries for a series of fortified plant tissues ranged from 69 to 103%. The study demonstrated selective and sensitive recovery of dimethenamid-P from the RAC tested. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|