Aldicarb and its degradation products in water may be determined by highperformance liquid chromatography (WHO, 1991). When followed by post-column derivatization to form fluorescent compounds, this method has detection limits of about 1.3, 0.8 and 0.5 μg/litre for aldicarb, the sulfoxide and the sulfone, respectively (Foerst & Moye, 1985). Aldicarb and its oxidation products can also be determined as their nitrile derivatives by capillary gas chromatography with a nitrogen–phosphorus detector (Zhong et al., 1984).

英文检测方法。

槽度娘后如下：神农丹即涕灭威，又称铁灭克，学名O-（甲基氨基甲酰基）-2-甲基-2-硫基丙醛肟。原药为有硫黄味的白色结晶，有效成分涕灭威含量98%以上，熔点98-100℃，蒸气压为133×10-4帕（1×10-4毫米汞柱，25℃），相对密度1.195（25/20℃）。在水 中溶解度为0.6%（25℃），可溶于丙酮、苯等有机溶剂。除对强碱外，它是稳定的， 对金属容器、设备没有腐蚀性，不易燃。一般配制成颗粒剂。为高毒杀虫、杀线虫剂。 具有触杀、胃毒、内吸作用。速效性好，一般在施药后数小时即能发挥作用，药效可持续6-8周。适用于棉花、花生等作物。可由甲硫基钠、亚硝酸2-氯异丁酯及甲基异 氰酸酯制得。