Analysis of imazalil and its major metabolite in citrus fruits by GC-FTD

被引：3

作者：

Kimura, N ^{[1
]}

Nagayama, T ^{[1
]}

Takano, I ^{[1
]}

Kobayashi, M ^{[1
]}

Tamura, Y ^{[1
]}

Tateishi, Y ^{[1
]}

Kitayama, K ^{[1
]}

Saito, K ^{[1
]}

机构：

[1] Tokyo Metropolitan Res Lab Publ Hlth, Shinjuku Ku, Tokyo 1690073, Japan

来源：

JOURNAL OF THE FOOD HYGIENIC SOCIETY OF JAPAN | 2003年 / 44卷 / 01期

关键词：

imazalil; imazalil metabolite; GC; citrus fruit; pesticide residue;

D O I：

10.3358/shokueishi.44.63

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

A simplified simultaneous analytical method of imazalil (IZ) and its major metabolite, alpha-(2,4-dichlorophenyl)- 1H-imidazole-1-ethanol (IZM), in citrus fruits was developed, and commodities samples were investigated. A homogenate of citrus fruits was extracted with ethyl acetate under basic conditions. The crude extract was partitioned between 0.025 mol/L of sulfuric acid and ethyl acetate. The analytes were extracted from the aqueous fraction under basic conditions with ethyl acetate. The extract solution was purified with an ENVI-Carb(TM) cartridge, and then analyzed by GC-FTD and GC/MS. Recoveries of IZ and IZM added to grapefruit at the level of 0.05 mug/g were 90.0 and 108.7 and those in the case of lemon were 100.4 and 93.0%, respectively. The detection limits were 0.01 mug/g in samples. By this method, IZ and IZM were analyzed in 46 citrus fruits on the market and were detected simultaneously in some samples.

引用

页码：63 / 68

页数：6