主管:中华人民共和国司法部
主办:司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N

中国司法鉴定 ›› 2012 ›› Issue (5): 71-74.

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GC-MS/MS法测定人头发中的大麻酚类及其代谢物

赵 晖1,2,卓先义1,向 平1等   

  1. 1.司法部司法鉴定科学技术研究所 上海市法医学重点实验室,上海200063;2.复旦大学附属华山医院,上海 200032
  • 收稿日期:2012-05-16 出版日期:2012-09-15 发布日期:2022-07-25
  • 通讯作者: 沈保华(1968—)男,副研究员,主要从事毒物化学研究。
  • 作者简介:赵晖(1984—)男,硕士研究生,主要从事毒物化学研究。E-mail∶bcldrhui@126.com。
  • 基金资助:

    质检公益性行业科研专项(10-137);上海市法医学重点实验室资助项目(12DZ2271500)

Analysis of Cannabinoids and The Main Metabolite in Human Hair by GC-MS/MS

ZHAO Hui1,2, ZHUO Xian-yi1, XIANG Ping1, etc.   

  1. 1. Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai 200063, China; 2. Huashan Hospital, Fudan University, Shanghai 200040, China
  • Received:2012-05-16 Published:2012-09-15 Online:2022-07-25

摘要:

目的 建立同时检测头发中Δ9-四氢大麻酚(THC)、大麻酚(CBN)、大麻二酚(CBD)和Δ9-四氢大麻酸(THC-COOH)的分析方法。方法 头发样品加入氘代内标Δ9-四氢大麻酸(THC-COOH-d3),经碱水解后,以混合溶剂[V(正己烷)∶V(乙酸乙酯=9∶1]进行提取,吹干,残留物经双(三甲基硅烷基)三氟乙酰胺(BSTFA)衍生化,用GC-MS/MS方法进行分析。结果 头发中THC-COOH、THC、CBN和CBD的最低检出限分别为4、4、10和20 pg·mg-1,各化合物在0.04~5ng·mg-1呈良好的线性关系(r>0.999),方法精密度、准确度均符合要求。结论 本方法选择性强、灵敏度高,适用于头发中CBD、CBN、THC及其代谢物THC-COOH的分析,并成功应用于实际案例中。

关键词: 大麻酚, 四氢大麻酸, 头发分析, GC-MS/MS

Abstract:

Objective To develop a gas chromatography-tandem mass spectrometry (GC-MS/MS) method for the simultaneous analysis of Δ9- tetrahydrocannabinol (THC), cannabidol (CBD), cannabinol (CBN) and 11-nor-Δ9-carboxy-tetrahydrocannabinol (THC-COOH) in human hair. Methods Hair sample was spiked with deuterium labeled 11-nor-Δ9-carboxy- tetrahydrocannabinol (THC-COOH-d3) as internal standard, prior to being hydrolyzed with sodium hydroxide. The mixture was extracted with n-hexane/ethyl acetate (9: 1), derived with N,O-bis-(trimethylsilyl)-trifluoroacetamide (BSTFA), and analyzed with GC-MS/MS. Results The limit of detection of THC-COOH, THC, CBN and CBD were 4, 4, 10, and 20pg/mg, respectively. Calibration curves covered a range from 0.04 to 5 ng/mg with good linearity (r>0.999). The accuracy and precision of analytes all met the requirements. Conclusion The method has a good selectivity and high sensitivity, and is applicable to the analysis of CBD, CBN, THC and their metabolite THC-COOH. It has been verified in real cases.

Key words: cannabis, cannabinoid, THC-COOH, hair analysis, GC-MS/MS

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