Gunatilake K, Goff M L
Department of the Medical Examiner, City and County of Honolulu, Hawaii.
J Forensic Sci. 1989 May;34(3):714-6.
Deaths as a result of organophosphate poisoning are usually detected by analysis of body fluids and tissues for the presence of the toxic agent. These procedures present particular difficulties when performed on remains in an advanced stage of decomposition. Malathion poisoning was suspected in a case in which the remains were in an advanced stage of decomposition and the presence of malathion was confirmed by analyses of gastric content and body fat. Two species of fly larvae, Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart), were present on the remains. A sample of these larvae was analyzed for malathion content. A total of 574 micrograms of malathion was detected in 0.26 g of pooled larvae, or a level corresponding to 2050 micrograms/g of larvae. Presence of organophosphates in arthropod larvae has not been documented previously and the analysis of larvae from decomposing remains may prove a useful technique for detection of these toxicants in decomposing remains.
有机磷中毒导致的死亡通常通过分析体液和组织中是否存在有毒物质来检测。当对处于高度腐败阶段的遗体进行这些检测程序时，会遇到特别的困难。在一个案例中，遗体处于高度腐败阶段，怀疑是马拉硫磷中毒，通过对胃内容物和体脂的分析证实了马拉硫磷的存在。遗体上有两种蝇幼虫，即大头金蝇（Chrysomya megacephala (Fabricius)）和红头丽蝇（Chrysomya rufifacies (Macquart)）。对这些幼虫的样本进行了马拉硫磷含量分析。在0.26克混合幼虫中总共检测到574微克马拉硫磷，即相当于每克幼虫2050微克的水平。节肢动物幼虫中存在有机磷此前尚无记录，对腐败遗体上的幼虫进行分析可能是在腐败遗体中检测这些有毒物质的一种有用技术。
