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Type: Artigo de periódico
Title: New Sorbents Based On Poly(methyloctylsiloxane) Immobilized On Silica For Use In Solid-phase Extraction [novos Sorventes Baseados Em Poli(metiloctilsiloxano) Sobre Sílica Para Uso Em Extração Em Fase Sólida]
Author: Queiroz S.C.N.
Melo L.F.C.
Jardim I.C.S.F.
Abstract: 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.
Citation: Quimica Nova. , v. 29, n. 4, p. 637 - 640, 2006.
Rights: aberto
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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