GAS-CHROMATOGRAPHIC METHOD FOR DETERMINING STRYCHNINE RESIDUES IN ALFALFA

被引：0
作者：
MILLER, G
WARREN, J
GOHRE, K
HANKS, L
机构：
来源：
JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS | 1982年 / 65卷 / 04期
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中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A GLC procedure was described for determining strychnine [rodenticide] in alfalfa with a N-P detector. Alfalfa samples containing strychnine residues were chopped and extracted in a blender using ethyl acetate, sodium carbonate and sodium sulfate; the organic extract was extracted with 0.1 N H2SO4 solution, made basic and subsequently extracted with methylene chloride. Following concentration, the strychnine residues were quantitated by peak height, using an external standard. Recoveries for 0.05-ppm spikes were 88 .+-. 11%.
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页码：901 / 903
页数：3
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