从浅井水中固相萃取克百威、莠去津、西玛津、甲草胺和氰草津。
Solid-phase extraction of carbofuran, atrazine, simazine, alachlor, and cyanazine from shallow well water.
作者信息
Nash R G
机构信息
U.S. Department of Agriculture, Agricultural Research Service, Natural Resources Institute, Beltsville, MD 20705.
出版信息
J Assoc Off Anal Chem. 1990 May-Jun;73(3):438-42.
Extraction of several nitrogen-containing pesticides from water on solid-phase C18 cartridges was rapid and accurate. One analyst can extract greater than 48 samples/day. Recovery efficiencies were 77, 95, 92, 90, and 99% with detection limits of 0.20, 0.05, 0.05, 0.20, and 0.10 micrograms/L for carbofuran, atrazine, simazine, alachlor, and, cyanazine, respectively. Extraction of the atrazine and simazine dealkylation products (deethylatrazine and deethylsimazine) was less efficient, e.g., 26 and 9%, respectively. Comparisons with 10 U.S. Geological Survey samples gave similar results.
使用固相C18柱从水中萃取几种含氮农药的方法快速且准确。一名分析人员每天可萃取超过48个样品。对于克百威、莠去津、西玛津、甲草胺和氰草津，回收率分别为77%、95%、92%、90%和99%，检测限分别为0.20、0.05、0.05、0.20和0.10微克/升。莠去津和西玛津脱烷基产物（去乙基莠去津和去乙基西玛津）的萃取效率较低，例如分别为26%和9%。与美国地质调查局的10个样品进行比较，结果相似。
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