| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000196500 |
| ISSN: | 0100-4042 |
| Authors: | Barrionuevo, Wilma Regina1 Lancas, Fernando Mauro |
| Institutions: | 1Universidade de Sao Paulo, Instituto de Quimica, Sao Carlos, Sao Paulo. Brasil |
| Year: | 2001 |
| Season: | Mar-Abr |
| Volumen: | 24 |
| Number: | 2 |
| Pages: | 172-175 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The pyrethroids bifenthrin, permethrin, cypermethrin and deltamethrin were extracted by solid phase extraction (SPE) and solid phase microextraction (SPME). The analysis were performed on a gas chromatograph with electron capture detection (GC-ECD). Octadecil Silano-C18, Florisil and Silica stationary phases were studied for SPE. Better results were obtained for Florisil which gave recoveries from 80% to 108%. Pyrethroids extraction by SPME showed a linear response and a detection limit of 10 pg ml-1. Although the data showed that the two extraction methods were able to isolate the pesticide residues from water samples, the best results were obtained by using SPME which is more sensitive, faster, cheeper, being a more useful technique for the analysis of pyrethroids in drinking water |
| Disciplines: | Química |
| Keyword: | Química analítica, Contaminación, Extracción, Extracción en fase sólida, Microextracción, Piretroides, Insecticidas, Plaguicidas |
| Keyword: | Chemistry, Analytical chemistry, Extraction, Solid phase extraction, Microextraction, Pyrethroids, Pesticides, Insecticides |
| Full text: | Texto completo (Ver HTML) |
