Novos sorventes baseados em poli (metiloctilsiloxano) sobre sílica para uso em extração em fase sólida
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.
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| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | Portuguese |
| Published: |
Sociedade Brasileira de Química
2006
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000400002 |
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