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采用GC/MS快速测定射击残留物中二号中定剂成分二甲基二苯脲。对疑似枪支的枪管用乙酸乙酯提取,在优化的色谱条件下,采用VF-5MS(30m×0.25mm×0.25μm)色谱柱,结合N IST98质谱库检测疑似枪支的枪管内的二号中定剂二甲基二苯脲。应用GC/MS方法对射击残留物中二号中定剂的快速检测,有助于案侦人员快速判断疑似枪支是否存在击发的可能或击发的行为。
Rapid Determination of Dimethyl Diphenyl Urea in No.2 Middle Aid of Shooting Residues by GC / MS. The barrel of the suspected firearm was extracted with ethyl acetate. Under optimal chromatographic conditions, the No. 2 neutralization in the barrel of the suspected firearm was carried out using a VF-5MS (30m × 0.25mm × 0.25μm) column in combination with the N IST98 mass spectrometry library Agent dimethyl diphenyl urea. The rapid detection of No.2 medium in shot remover by GC / MS method can help case investigators to quickly determine whether the suspected firearm has the possibility of firing or firing.