METHOD FOR TRAPPING DISPARLURE FROM AIR AND ITS DETERMINATION BY ELECTRON-CAPTURE GAS-CHROMATOGRAPHY

被引：12

作者：

CARO, JH

BIERL, BA

FREEMAN, HP

SONNETT, PE

机构：

[1] Agricultural Environmental Quality Institute, Beltsville Agricultural Research Center, U. S. Department of Agriculture, Beltsville

[2] Honey Bee Pesticides/Diseases Laboratory, U. S. Department of Agriculture, Laramie

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1978年 / 26卷 / 02期

关键词：

D O I：

10.1021/jf60216a019

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

An efficient and sensitive method has been developed for determination of airborne concentrations of disparlure (cis-7,8-epoxy-2-methyloctadecane), the gypsy moth [Lymantria dispar (L.)] sex attractant. Disparlure is collected by drawing a measured volume of air through a bed of type 4A molecular sieves. For quantitative analysis, the sieves are extracted with 1:1 hexane-ether, and the disparlure in the extract is derivatized with triphenylphosphine dibromide. After cleanup with activated Florisil, the brominated product is determined by electron-capture gas chromatography. The method yields recoveries of 80% or more over a wide range of concentrations. It has been successfully applied in the field to disparlure air concentrations as low as 0.2 ng/m3. © 1978, American Chemical Society. All rights reserved.

引用

页码：461 / 463

页数：3

共 7 条

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