Gas chromatographic determination of airborne residues of azinphosmethyl and azinphosmethyl-oxon by cool on-column injection

被引:5
作者
Moate, TF
Jenkins, JJ
机构
[1] Agricultural Chemistry Extension, Oregon Stt. Univ., 333 Weniger Hall, Corvallis
关键词
injection methods; environmental analysis; azinphosmethyl; pesticides; organophosphorus compounds;
D O I
10.1016/S0021-9673(97)00294-X
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Gas chromatographic determination of azinphosmethyl and its thermally labile metabolite, azinphosmethyl-oxon, can be achieved with cool on-column injection and element-specific flame photometric detection. This paper presents a method of analysis for airborne residues of azinphosmethyl and azinphosmethyl-oxon in XAD-4 resin extracts using cool on-column injection. Calculated limits of quantitation for the analytical method are 8.1 ng/m(3) for azinphosmethyl and 10.2 ng/m(3) for azinphosmethyl-oxon. Average percentage recovery and percentage relative standard deviations for 10 replicates were 93+/-18% for azinphosmethyl and 104+/-16% for the oxon. This analytical method is rapid, robust and requires a minimum of gas chromatograph injection port maintenance. (C) 1997 Elsevier Science B.V.
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页码:307 / 312
页数:6
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