YANG Si-yao,HE Hong-yuan,JIANG Li-wei,LÜ Jian-xia,TENG Ao-xue.Simultaneous Determination of 8 Synthetic Cannabinoids and 7 Metabolites in Urine and Blood by Liquid Chromatography- Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(04):583-592.
YANG Si-yao,HE Hong-yuan,JIANG Li-wei,LÜ Jian-xia,TENG Ao-xue.Simultaneous Determination of 8 Synthetic Cannabinoids and 7 Metabolites in Urine and Blood by Liquid Chromatography- Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(04):583-592. DOI: 10.12452/j.fxcsxb.240814306.
Simultaneous Determination of 8 Synthetic Cannabinoids and 7 Metabolites in Urine and Blood by Liquid Chromatography- Tandem Mass Spectrometry
A liquid chromatography-tandem mass spectrometry(LC-MS/MS) method was developed for the qualitative and quantitative analysis of eight synthetic cannabinoids and seven metabolites in urine and blood. After the urine and blood samples were extracted by a mixture of methanol-acetonitrile (1∶1,volu
me ratio),the supernatant was extracted by high-speed centrifugation,and the gradient elution was carried out with an aqueous solution containing 0.1% formic acid and acetonitrile as the mobile phase,and the separation was carried out on a C
18
chromatography column. The ion source for the tandem mass spectrometry was an electrospray ionization source(ESI+),and the detection was performed in multiple reaction monitoring(MRM) mode. The method can be used for the analysis of 15 targets within 15 min. The results showed that the 15 targets exhibited a good linear relationship in the range of 1-200 ng/mL in urine,the limits of detection(LODs) were 0.01-0.10 ng/mL,and the limits of quantification(LOQs) were 0.03-0.34 ng/mL. The 15 targets exhibited a good linear relationship in the range of 0.50-200 ng/mL in blood,LODs were 0.01-0.20 ng/mL,and LOQs were 0.03-0.66 ng/mL. The recoveries in urine and blood at three different spiked concentrations were 92.2%-105% and 82.2%-117%. The developed method is sensitive,effective in separation,easy to operate,and suitable for the determination analysis of synthetic cannabinoid analogs in urine and blood.
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