利用杂质分布图对甲基苯丙胺样品进行同批鉴定研究

发布时间：2018-05-23 16:23

本文选题：甲基苯丙胺 + 同批样品　；参考：《卫生研究》2008年06期

【摘要】：目的通过甲基苯丙胺(MA)杂质分布图,比较和分类不同案件中的MA晶体,为MA样品进行同批次鉴定提供依据。方法每份MA样品取50mg溶于1ml缓冲液(pH 7.0,0.1mol/L磷酸盐缓冲液0.8ml,10%Na2CO3水溶液0.2ml),用乙酸乙酯0.5ml萃取(含有四个内标,C10、C15、C20、C28),用气相色谱仪-火焰离子检测器(GC-FID)分析,使用DB-5毛细管柱(30m×0.32mm i..d×1.0μm),选择17个特征峰对样品进行比较和分类,相对峰面积取对数值后用欧氏距离进行评价。结果对北京市公安局2006～2007年间缴获的8批MA样品进行分析,每批样品取6份,共48份样品进行实验,相同批次的样品成功地被分到同一组。结论本实验方法能很好地对MA样品进行同批次鉴定,可为毒品侦查工作提供有力的技术支持。
[Abstract]:Objective to compare and classify MA crystals in different cases by using MA-methamphetamine impurity distribution map, and to provide evidence for the identification of MA samples in the same batch. Methods 50mg was taken from each MA sample and dissolved in 1ml buffer solution pH 7.0 ~ (0.1 mol / L) phosphate buffer (0.8 ml / L) and 0.2ml / L of Na _ 2CO _ 3 aqueous solution. It was extracted with ethyl acetate 0.5ml (containing four internal standard C _ (10) C _ (15) C _ (15) C _ (15) C _ (20) C _ (28) and analyzed by gas chromatograph and flame ion detector (FID). Using DB-5 capillary column of 30m 脳 0.32mm i..d 脳 1.0 渭 m, 17 characteristic peaks were selected to compare and classify the samples, and the relative peak area was evaluated by Euclidean distance after logarithmic values. Results eight samples of MA were collected from 2006 to 2007 by Beijing Public Security Bureau. Six samples were taken from each batch and 48 samples were tested. The samples of the same batch were divided into the same group successfully. Conclusion this method can be used to identify MA samples in the same batch and provide technical support for drug detection.
【作者单位】：北京市公安局法医检验鉴定中心;公安部缉毒局;
【基金】：国家科技部十一五攻关项目(No.2006BAK09B08)
【分类号】：D919.4

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