Determination of captafol, cyhexatin, 1-naphthylacetic acid and quintozene in apple, Japanese pear and melon by simultaneous extraction

被引：3

作者：

Nagayama, T ^{[1
]}

Takano, I ^{[1
]}

Kobayashi, M ^{[1
]}

Tamura, Y ^{[1
]}

Tomizawa, S ^{[1
]}

Tateishi, Y ^{[1
]}

Kimura, N ^{[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 / 02期

关键词：

non-registered pesticide; captafol; cyhexatin; 1-naphthylacetic acid; quintozene; simultaneous extraction; GC; HPLC; GC/MS; LC/MS;

D O I：

10.3358/shokueishi.44.126

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

A simple and rapid method is described for the determination of the non-registered pesticides, captafol, quintozene (PCNB), cyhexatin and 1-naphthylacetic acid (NAA), in fruits. These pesticides were extracted with acidified acetone, then captafol and PCNB were purified with a Florisil mini column and analyzed by GC-ECD. Cyhexatin was ethylated with ethylmagnesium bromide, and the ethyl derivative was analyzed by GC-FPD (Sn filter). NAA was purified with liquid-liquid extraction and determined by HPLC equipped with a fluorescence detector. These analytes were identified with GC/MS or LC/MS. The minimum identified concentration of the pesticides was below 0.2 ng per injection, which corresponds to a detection limit of below 0.02 mug/g in the original samples. Recoveries of the pesticides spiked at 0.1 mug/g into apple, Japanese pear and melon were greater than 61%.

引用

页码：126 / 131

页数：6