Poly(methyloctadecylsiloxane) immobilized on silica by γ radiation for use in solid-phase extraction

被引：16
|
作者：
Queiroz, SCN [1 ]
Melo, LFC [1 ]
Jardim, ICSF [1 ]
机构：
[1] State Univ Campinas, Inst Chem, Dept Analyt Chem, BR-13083970 Campinas, SP, Brazil
来源：
JOURNAL OF CHROMATOGRAPHY A | 2002年 / 948卷 / 1-2期
基金：
巴西圣保罗研究基金会;
关键词：
solid-phase extraction; sorbents; gamma irradiation; poly(methyloctadecylsiloxane); pesticides;
D O I：
10.1016/S0021-9673(01)01423-6
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
This work presents a fast, easy and effective procedure to obtain silica-based C-18 type sorbents for use in solid-phase extraction (SPE), The solid-phase was made by depositing a polymer, poly(methyloctadecylsiloxane) (PMODS), on the silica support followed by immobilization using gamma irradiation. The method presents an application of green chemistry in the analytical laboratory, since there are no toxic residues after the synthesis. Water samples spiked with a mixture of pesticides (benomyl, tebuthiuron, diuron, simazine, atrazine and ametryn) were extracted in the off-line mode in order to evaluate the performance of this sorbent. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：171 / 176
页数：6
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