化学工程与技术

Vol.4 No.6 (November 2014)

气相色谱/ECD法检测苯丙胺类毒品
Studies on Detection of Amphetamines by Gas Chromatography/ECD

 

作者:

翟志强 :扬州市公安局刑警队,扬州

石 腾 :宜兴市公安局,宜兴

周亚红 :江苏警官学院刑技系,南京

 

关键词:

苯丙胺类气相色谱法分散液相微萃取技术Amphetamines Gas Chromatography DLLME

 

摘要:

本文探究了气相色谱法的电子俘获检测器测定苯丙胺类毒品的方法。在一定色谱条件下利用苯丙胺、甲基苯丙胺、伪麻黄碱标准溶液绘制苯丙胺类毒品的标准曲线,得到苯丙胺的标准曲线为y = 5.36x − 690.98,R = 0.9994,线性范围为2.0 × 102 μg∙mL−1~1.0 × 103 μg∙mL−1,检出限为2.0 × 102 μg∙mL−1,相对标准偏差为9.83%,甲基苯丙胺的标准曲线为y = 1.34x + 215.8,R = 0.9980,线性范围为2.0 × 102 μg∙mL−1~2.0 × 103 μg∙mL−1,检出限为2.0 × 102 μg∙mL−1,相对标准偏差为6.29%,伪麻黄碱的标准曲线为y = 8.07x + 176.38,R = 0.9988,线性范围为6.4 × 10−1 μg∙mL−1~4.0 × 102 μg∙mL−1,检出限为6.4 × 10−1 μg∙mL−1,相对标准偏差为5.69%;并检测缴获的苯丙胺类毒品的有效成分及其含量。采用分散液相微萃取技术提取上述三种毒品,其平均回收率为39.70%、51.68%、65.05%。本文为法庭科学提供了检测苯丙胺类毒品的新方法。

This paper studies the way to detect amphetamines with the use of gas chromatography, or to be specific, the electron capture detector method. By detecting amphetamine, methamphetamine and pseudoephedrine under a certain condition, the standard curves were drawn. The standard curve of amphetamine is y = 5.36x − 690.98, R = 0.9994. Its linearity range is 2.0 × 102 μg∙mL−1~1.0 × 103 μg∙mL−1. Its detection limit is 2.0 × 102 μg∙mL−1 and its RSD is 9.83%. The standard curve of me-thamphetamine is y = 1.34x + 215.83, R = 0.9980. Its linearity range is 2.0 × 102 μg∙mL−1~2.0×103 μg∙mL−1. Its detection limit is 2.0×102μg∙mL−1 and its RSD is 6.29%. The standard curve of pseu-doephedrine is y = 8.07x + 176.38, R = 0.9988. Its linearity range is 6.4 × 10−1 μg∙mL−1~4.0 × 102 μg∙mL−1. Its detection limit is 6.4 × 10−1 μg∙mL−1 and its RSD is 5.69%. Some drugs seized by local police were analyzed and their active ingredients and contents were defined. Amphetamines were extracted with dispersive liquid-liquid microextraction (DLLME) and the results showed that the average recovery of amphetamine is 39.70%, methamphetamine’s is 51.68% and pseudoephe-drine’s is 65.05%. This article can provide as reference for judicial detecting of amphetamines.

文章引用:

翟志强 , 石 腾 , 周亚红 (2014) 气相色谱/ECD法检测苯丙胺类毒品。 化学工程与技术, 4, 79-85. doi: 10.12677/HJCET.2014.46011

 

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