Volatilization chamber: an alternative for evaluating the sampling efficiency of α- and β-endosulfan in the gas phase

Quimica nova

Silva, Diego B. da¹  Freixo, João L.¹  Dores, Eliana F. G. de C.¹  Villa, Ricardo D.¹ 

[1] Universidade Federal de Mato Grosso, Cuiabá, Brasil

关键词: XAD®;    -2;    air pollution;    organochlorine.;   

DOI  :  10.1590/S0100-40422013000700019

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The efficiencyof XAD®-2 resin in sampling the pesticides α and β-endosulfanfrom air contaminated in the laboratory was evaluated. Sampling efficiency rangedfrom 87 to 108% for α-endosulfan and from 71 to 84% for β-endosulfanwith relative standard deviation lower than 19%. The pesticides were not detectedin the second section of the cartridge showing the good retention capacity ofXAD®-2 for these analytes. Method quantification limits were0.32 and 0.34 µg m-3 for α and β-endosulfan, respectively.These results suggest that the proposed method may be useful for evaluatingoccupational exposure to these compounds.

【 授权许可】

CC BY