法医学杂志 ›› 2023, Vol. 39 ›› Issue (1): 34-39.DOI: 10.12116/j.issn.1004-5619.2021.310901

• 论著 • 上一篇    下一篇

LC-MS/MS法测定血液中卡马西平及其代谢物

崔海燕1,2(), 吕晨曦1,3, 师燕华1, 原妮2, 梁嘉豪1, 安全2(), 郭中元1(), 贠克明1()   

  1. 1.山西医科大学法医学院,山西 晋中 030600
    2.中国辐射防护研究院,山西 太原 030006
    3.上海市公安局长宁分局,上海 200336
  • 收稿日期:2021-09-09 发布日期:2023-02-25 出版日期:2023-02-28
  • 通讯作者: 安全,郭中元,贠克明
  • 作者简介:郭中元,男,教授,博士,主要从事研究毒药物代谢组学研究;E-mail:lennycastle@sina.com
    安全,男,研究员,博士,主要从事毒物毒理学研究;E-mail:anquan@cirp.org.cn
    贠克明,男,教授,博士,主要从事法医毒物动力学研究;E-mail:yunkeming5142@163.com
    崔海燕(1985—),女,博士,副教授,主要从事天然药毒物的法医毒物动力学和代谢组学研究;E-mail:hycui1985@126.com
  • 基金资助:
    国家自然科学基金重点资助项目(82130056);国家自然科学基金青年基金资助项目(81601647);国家博士后基金面上资助项目(2019M651086);山西省应用基础研究面上青年资助项目(201901D211332);山西省教育厅高校科技创新资助项目(2020L0191)

Detection of Carbamazepine and Its Metabolites in Blood Samples by LC-MS/MS

Hai-yan CUI1,2(), Chen-xi LÜ1,3, Yan-hua SHI1, Ni YUAN2, Jia-hao LIANG1, Quan AN2(), Zhong-yuan GUO1(), Ke-ming YUN1()   

  1. 1.School of Forensic Medicine, Shanxi Medical University, Jinzhong 030600, Shanxi Province, China
    2.China Institute for Radiation Protection, Taiyuan 030006, China
    3.Changning Branch of Shanghai Public Security Bureau, Shanghai 200336, China
  • Received:2021-09-09 Online:2023-02-25 Published:2023-02-28
  • Contact: Quan AN,Zhong-yuan GUO,Ke-ming YUN

摘要:

目的 建立LC-MS/MS法测定血液样品中卡马西平及其代谢物10,11-二氢-10,11-环氧卡马西平和10,11-二氢-10-羟基卡马西平的方法。 方法 以1-丁基-3-甲基咪唑六氟磷酸盐离子液体为萃取剂处理血液样品,通过超声辅助萃取,采用ZORBAX Eclipse Plus C18,95?色谱柱分离,流动相A为含0.1%甲酸、10 mmol/L乙酸铵的水溶液,流动相B为混合有机溶剂(V乙腈V甲醇=2∶3),梯度洗脱,流速1.00 mL/min,采用电喷雾离子源、正离子模式,多反应监测模式进行检测。 结果 血液样品中卡马西平及其代谢物10,11-二氢-10,11-环氧卡马西平和10,11-二氢-10-羟基卡马西平在相应范围内线性关系良好,相关系数(r)均大于0.995 6,检出限分别为3.00、0.40和1.30 ng/mL,定量限分别为8.00、1.00和5.00 ng/mL,提取回收率为76.00%~106.44%,日内和日间精密度均小于16%。采用本方法从死亡案件的血液样品中检出卡马西平和主要代谢产物10,11-二氢-10,11-环氧卡马西平成分,质量浓度分别为2.71 μg/mL和252.14 ng/mL。 结论 本方法灵敏度高、选择性好,适用于血液样品中卡马西平及其代谢物的检测,可应用于卡马西平相关的法医学鉴定。

关键词: 法医毒物分析, 液相色谱-串联质谱法, 卡马西平, 代谢物, 10,11-二氢-10,11-环氧卡马西平, 10,11-二氢-10-羟基卡马西平

Abstract:

Objective To establish a method for the detection of carbamazepine and its metabolites 10,11-dihydro-10,11-epoxycarbamazepine and 10,11-dihydro-10-hydroxycarbamazepine in blood samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Methods The blood samples were treated with 1-butyl-3-methylimidazolium hexafluorophosphate as an extraction solvent. The samples were extracted by ultrasound-assisted extraction and separated by ZORBAX Eclipse Plus C18, 95? column. The mobile phase A aqueous solution containing 0.1% formic acid and 10 mmol/L ammonium acetate, and mobile phase B mixed organic solvent containing acetonitrile/methanol (VacetonitrileVmethanol=2∶3) were used for gradient elution at the flow rate of 1.00 mL/min. An electrospray ion source in positive mode was used for detection in the multiple reaction monitoring. Results The linearities of carbamazepine and its metabolites 10,11-dihydro-10,11-epoxycarbamazepine and 10,11-dihydro-10-hydroxycarbamazepine in blood samples were good within the corresponding range, with correlation coefficients (r) greater than 0.995 6. The limits of detection were 3.00, 0.40 and 1.30 ng/mL,respectively. The limit of quantitation were 8.00,1.00 and 5.00 ng/mL,respectively. The extraction recoveries ranged from 76.00% to 106.44%. The relative standard deviations of the intra-day and inter-day precisions were less than 16%. Carbamazepine and its main metabolite 10,11-dihydro-10,11-epoxycarbamazepine were detected in blood samples of death cases with a mass concentration of 2.71 μg/mL and 252.14 ng/mL,respectively. Conclusion This method has high sensitivity and good selectivity, which is suitable for the detection of carbamazepine and its metabolites in blood samples, and can be used for carbamazepine-related forensic identifications.

Key words: forensic toxicological analysis, LC-MS/MS, carbamazepine, metabolites, 10,11-dihydro-10,11-epoxycarbamazepine, 10,11-dihydro-10-hydroxycarbamazepine

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