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.
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.
Determination of Motion Sickness Drugs and Metabolite in Dried Blood Spots by Liquid Chromatography-Tandem Mass Spectrometry
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.
关键词
干血点晕车药代谢物液相色谱-串联质谱法
Keywords
dried blood spotmotion sickness drugsmetaboliteliquid chromatography-tandem mass spectrometry
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