SBSE-GC-ECD/FPD in the analysis of pesticide residues in Passiflora alata Dryander herbal teas

被引:47
作者
Bicchi, C
Cordero, C
Iori, C
Rubiolo, P
Sandra, P
Yariwake, JH
Zuin, VG
机构
[1] Univ Turin, Dipartimento Sci & Tecnol Farmaco, I-10125 Turin, Italy
[2] Univ Stellenbosch, Dept Chem, ZA-7602 Matieland, South Africa
[3] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
关键词
stir bar sorptive extraction (SBSE); sample preparation; medicinal plants; Passiflora alata; Dryander; herbal teas; pesticide residues;
D O I
10.1021/jf020630f
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Stir bar sorptive extraction (SBSE) in combination with GC-ECD/FPD analysis is here applied to the determination of the residues of 11 pesticides (hexachlorobenzene, lindane, chlorothalonil, parathion methyl, parathion ethyl, fenitrothion, malathion, dieldrin, alpha- and beta-endosulfan, and tetradifon) in herbal teas prepared with Passiflora alata Dryander spiked leaves. The method was optimized using spiked herbal teas in a range from 0.05 to 1 pg/muL for organochlorine pesticides and from 0.15 to 3 pg/muL for organophosphorus pesticides. The method is reproducible and repeatable with recoveries calculated from herbal teas prepared with spiked plant material versus spiked herbal teas, varying from about 30% for tetradifon to about 90% for parathion methyl and malathion. The limits of quantitation (LOQs) ranged from 0.017 pg/muL for lindane to 0.117 pg/muL for malathion.
引用
收藏
页码:27 / 33
页数:7
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