- Home
- Companies
- Sigma-Aldrich
- Articles
- Analysis of Organophosphorous ...
Analysis of Organophosphorous Pesticides in Produce using Acetonitrile Extraction, Dual-Layer Carbon-Aminopropylsilica Cleanup and GC-NPD Detection
Courtesy of Sigma-Aldrich
GC analysis coupled with Nitrogen-Phosphorous detection could selectively detect organophosphorous pesticides with low background in comparison to MS detection.
The clean-up protocol using acetonitrile/MgSO4 extraction and dual layer carbon/PSA SPE cleanup resulted in acceptable recoveries for a majority of the pesticides studied. The recoveries were improved by optimizing the toluene content of the SPE elution solvent to 35% toluene-65% acetone.
The recovery of organophosphorous pesticides was found to be matrix- dependent; in onion and cabbage samples the recoveries were lower than in apple and button mushroom samples.
-
Most popular related searches
Customer comments
No comments were found for Analysis of Organophosphorous Pesticides in Produce using Acetonitrile Extraction, Dual-Layer Carbon-Aminopropylsilica Cleanup and GC-NPD Detection. Be the first to comment!