| Author(s) | Alaa Kamel |
| Affiliation | Department of Plant Protection, College of Agriculture, King Saud University, P.O. Box 2460, Riyadh 11451, Kingdom of Saudi Arabia |
| Title | Microwave-assisted Solvent Extraction of Pesticide Residues in Food Samples |
| Source | Journal of King Saud University. Agricultural Sciences. Volume 16, No 1. (2004/1424) |
| Abstract | Seventy-one pesticides, belonging to six different pesticide groups; organochlorines, organophosphates, carbamates, pyrethroids, herbicides, and fungicides, were spiked into a sample of mixed vegetables and extracted by the microwave-assisted solvent extraction technique (MASE). Certain pesticides were also extracted and determined following the official method of analysis of AOAC international procedure for comparison. The results showed that extraction by MASE had recovery percentages higher than AOAC extraction methods except for the fungicide thiram, the organochlorine endrin aldehyde, and the organophosphates TEPP and guthion, which were probably thermally degraded by the MASE method. The greatest advantage of this technique over the AOAC is not only for the higher recovery percentages but also for the shorter time of extraction (30 minutes versus 2 hours), less solvent consumption (60 ml versus 250 ml), and a larger number of pesticides that could be simultaneously extracted. |
