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应用顶空气相色谱分析方法检测生物样品中的二氯甲烷(CH_2Cl_2)和氯仿(CHCl_2),并考察了20余种实验室中常见有机溶剂的干扰情况,测定了血中二氯甲烷和氯仿的线性范围及检出限,其方法回收率超过80％,方法测定变异系数小于16％,其中体液测定变异系数小于5％。该分析方法已成功地用于案件的鉴定工作。
The CH 2 Cl 2 and CHCl 2 in biological samples were detected by headspace gas chromatographic analysis. The interferences of common organic solvents in more than 20 kinds of laboratories were investigated. The contents of methylene chloride and chloroform in blood Linear range and detection limit, the method recovery of more than 80%, the method of determination of coefficient of variation of less than 16%, of which the coefficient of variation measured body fluid is less than 5%. This method of analysis has been successfully used in the identification of cases.