气相色谱法测定玉米和大豆中甲草胺（2-氯-2'，6'-二乙基-N-（甲氧基甲基）乙酰苯胺）除草剂残留量
Gas-liquid chromatographic determination of alachlor (2-chloro-2', 6'-diethyl-N-(methoxymethyl)-acetanilide) herbicide residues in corn and soybeans.
作者信息
Ammann B D, Call D J, Draayer H A
出版信息
J Assoc Off Anal Chem. 1976 Jul;59(4):859-61.
A method has been developed for the extraction and determination of alachlor (2-chloro-2',6'-diethyl-N- (methoxymethyl)-acetanilide) residues in green corn and soybeans. Residues are extracted with acetonitrile and cleaned up on a Florisil column. The methylene chloride extract is sufficiently clean for electron capture gas-liquid chromatographic analysis and for verification by thin layer chromatography. Average recoveries of spiked samples (0.2 ppm) were 69 and 82% for corn and soybeans, respectively. This procedure could be useful for the detection of the parent compound in these crops soon after field application, but it does not detect metabolites.
已开发出一种用于提取和测定青玉米和大豆中甲草胺（2-氯-2'，6'-二乙基-N-（甲氧基甲基）乙酰苯胺）残留量的方法。残留物用乙腈提取，并在弗罗里硅土柱上净化。二氯甲烷提取物足够纯净，可用于电子捕获气液色谱分析以及通过薄层色谱法进行验证。加标样品（0.2 ppm）在玉米和大豆中的平均回收率分别为69%和82%。该方法可用于在田间施用后不久检测这些作物中的母体化合物，但无法检测代谢物。
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