Câmara de volatilização: uma alternativa para avaliação da eficiência de amostragem de α- e β-endossulfam em fase gasosa
| Autor: | João L. Freixo, Diego B. da Silva, Eliana F. G. de C. Dores, Ricardo D. Villa |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 36, Iss 7, Pp 1038-1043 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.1590/S0100-40422013000700019 |
| Popis: | The efficiency of XAD®-2 resin in sampling the pesticides α and β-endosulfan from air contaminated in the laboratory was evaluated. Sampling efficiency ranged from 87 to 108% for α-endosulfan and from 71 to 84% for β-endosulfan with relative standard deviation lower than 19%. The pesticides were not detected in the second section of the cartridge showing the good retention capacity of XAD®-2 for these analytes. Method quantification limits were 0.32 and 0.34 µg m-3 for α and β-endosulfan, respectively. These results suggest that the proposed method may be useful for evaluating occupational exposure to these compounds. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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