Novos sorventes baseados em poli (metiloctilsiloxano) sobre sílica para uso em extração em fase sólida

Química Nova

Sonia C. N. Queiroz²  Lúcio F. C. Melo¹  Isabel C. S. F. Jardim¹ 

[1] ,Embrapa Meio AmbienteJaguariúna SP ,Brasil

关键词: pesticides;    solid-phase extraction;    sorbents;   

DOI  :  10.1590/S0100-40422006000400002

来源: SciELO

【 摘 要 】

This paper presents an easy and practical procedure to obtain silica-based C-8 type sorbents for use in solid-phase extraction. The materials are prepared by depositing poly(methyloctylsiloxane), PMOS, on the silica support. Two different treatments for immobilization were used: thermal treatment or gamma irradiation. Suitable recoveries were obtained after pre-concentration of dilute solutions, at the ng/L level, of a mixture of pesticides, indicating the good performance of the materials.

【 授权许可】

CC BY-NC   
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