Development of a SPME-GC-ECD methodology for selected pesticides in must and wine samples

被引:37
作者
Correia, M
Delerue-Matos, C
Alves, A
机构
[1] Univ Porto, LEPAE, Fac Engn, P-4200465 Porto, Portugal
[2] Ist Super Engn Porto, CEQUP, P-4200 Oporto, Portugal
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 2001年 / 369卷 / 7-8期
关键词
D O I
10.1007/s002160100762
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A method for the determination of some pesticide residues in must and wine samples was developed using solid-phase microextraction (SPME) and gas chromatography - electron capture detection (GC/ECD). The procedure only needs dilution as sample pre-treatment and is therefore simple, fast and solvent-free. Eight fungicides (vinclozolin, procymidone, iprodione, penconazole, fenarimol, folpet, nuarimol and hexaconazole), one insecticide (chlorpyriphos) and two acaricides (bromopropylate and tetradifon) can be quantified. Good linearity was observed for all the compounds in the range 5-100 mug/L. The reproducibility of the measurements was found acceptable (with RSD's below 20%). Detection limits of 11 mug/L, on average, are sufficiently below the proposed maximum residue limits (MRL's) for these compounds in wine. The analytical method was applied to the determination of these compounds in Portuguese must and wine samples from the Demarcated Region of Alentejo, where any residues could be detected.
引用
收藏
页码:647 / 651
页数:5
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