1.中国刑事警察学院 刑事科学技术学院,辽宁 沈阳 110854
2.法庭毒物分析公安部重点实验室, 北京 100192
陈学国,博士,教授,研究方向:法医毒物分析,E-mail:chenxueguo@cipuc.edu.cn
纸质出版日期:2024-06-15,
收稿日期:2024-01-08,
修回日期:2024-04-02,
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吴浩天,陈学国,田露,杜政达.液相色谱-串联质谱法测定干血点中晕车药及代谢物[J].分析测试学报,2024,43(06):939-944.
WU Hao-tian,CHEN Xue-guo,TIAN Lu,DU Zheng-da.Determination of Motion Sickness Drugs and Metabolite in Dried Blood Spots by Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(06):939-944.
吴浩天,陈学国,田露,杜政达.液相色谱-串联质谱法测定干血点中晕车药及代谢物[J].分析测试学报,2024,43(06):939-944. DOI: 10.12452/j.fxcsxb.24010801.
WU Hao-tian,CHEN Xue-guo,TIAN Lu,DU Zheng-da.Determination of Motion Sickness Drugs and Metabolite in Dried Blood Spots by Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(06):939-944. DOI: 10.12452/j.fxcsxb.24010801.
该文建立了干血点(DBS)中东莨菪碱、阿托品、茶碱、地芬尼多、苯海拉明及二苯甲酮的液相色谱-串联质谱检测方法。取20 µL血液制备干血点,以甲醇-乙腈(体积比8∶2)为溶剂进行超声提取,采用Thermo Gold ODS(150 mm×2.1 mm,5 µm)色谱柱进行分离,以甲醇-5 mmol/L乙酸铵溶液(含0.2%冰乙酸,pH 4.0)为流动相梯度洗脱,在正离子电离方式下采用多反应监测模式进行测定,以外标法定量。结果表明:干血点中6种目标物在一定的质量浓度范围内线性关系良好,相关系数(
r
2
)均不小于0.993 0,检出限为3~30 ng/mL,定量下限为10~100 ng/mL;在低、中、高3个加标水平下,6种目标物的平均回收率为88.8%~108%,日间和日内相对标准偏差均小于15%。该方法操作简便、快捷,准确度和灵敏度高,已成功应用于1例地芬尼多中毒者的检测,为晕车药中毒案例的测定提供了新方法。
In this paper,a liquid chromatography-tandem mass spectrometry(LC-MS/MS) method was developed for the determination of scopolamine,atropine,diphenidol,theophylline,diphenhydramine and benzophenone in dried blood spots(DBS). A dried blood spot was prepared by taking 20 µL of blood,extracted by methanol-acetonitrile(8∶2,volume ratio) as solvent by ultrasonication,separated on a Thermo Gold ODS(150 mm×2.1 mm,5 µm) column,with methanol-5 mmol/L ammonium acetate solution(containing 0.2% glacial acetic acid,pH 4.0) was used as the mobile phase for gradient elution,and then measured in multiple reaction monitoring(MRM) mode of the positive-ion mode,and quantified by external standard method. The results showed that the linearity of the six targets in dried blood spots was good within a certain mass concentra
tion range,and the correlation coefficients(
r
2
) were not less than 0.993 0. The limits of detection(LODs) ranged from 3 to 30 ng/mL,and the limits of quantification(LOQs) ranged from 10 to 100 ng/mL. The average recoveries of the six targets ranged from 88.8% to 108% at low,medium and high concentration levels,with the inter-day and intra-day relative standard deviations were less than 15%. The method was simple and fast,with high accuracy and sensitivity,and has been successfully applied to the detection of one case of difenidol poisoning,which provides a new method for the determination of cases of motion sickness drug poisoning.
干血点晕车药代谢物液相色谱-串联质谱法
dried blood spotmotion sickness drugsmetaboliteliquid chromatography-tandem mass spectrometry
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