Detection of Twenty Abused Drugs in Dried Blood Spots by Response Surface Method Combined with High Performance Liquid Chromatography-Tandem Mass Spectrometry
Scientific Papers|更新时间:2025-11-05
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Detection of Twenty Abused Drugs in Dried Blood Spots by Response Surface Method Combined with High Performance Liquid Chromatography-Tandem Mass Spectrometry
Journal of Instrumental AnalysisVol. 44, Issue 10, Pages: 2153-2161(2025)
LI Jia-wen,HE Hong-yuan,YANG Si-yao,LI Dong-mei.Detection of Twenty Abused Drugs in Dried Blood Spots by Response Surface Method Combined with High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(10):2153-2161.
LI Jia-wen,HE Hong-yuan,YANG Si-yao,LI Dong-mei.Detection of Twenty Abused Drugs in Dried Blood Spots by Response Surface Method Combined with High Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(10):2153-2161. DOI: 10.12452/j.fxcsxb.241009446.
Detection of Twenty Abused Drugs in Dried Blood Spots by Response Surface Method Combined with High Performance Liquid Chromatography-Tandem Mass Spectrometry
A qualitative and quantitative method was established for the determination of twenty abused drugs in DBS by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS). The relative peak area was used as the evaluation index. The drying time,drying temperature and extraction solvent of DBS samples were determined by single factor experiment. The response surface method(RSM) was used to optimize the preparation and extraction conditions of DBS. Finally,the samples were dried at 50
℃ for 20 minutes,and then extracted with a mixture of methanol-acetonitrile(13∶20,volume ratio). The e
xtracts were separated by Phenomenex Kinetex F5(100 mm×2.1 mm,2.6 μm) chromatography column and gradient elution was carried out with an aqueous solution containing 0.1% formic acid and acetonitrile as the mobile phases. Finally,the samples were analyzed by HPLC-MS/MS. The results showed that 20 targets in DBS showed good linearity in the range of 0.5-100 ng/mL with the correlation coefficients greater than 0.99. The limits of detection(LODs) were in the range of 0.1-1 ng/mL,and the limits of quantification(LOQs) were 0.5-5 ng/mL. The extraction recoveries at three different spiked concentrations were in the range of 81.1%-124%. The matrix effects were in the range of 84.6%-116%,and the relative standard deviations(RSDs) were all less than 15%. The intra-day precision ranged from 0.18% to 9.8%,while the inter-day precision ranged from 0.26% to 9.9%. The method is simple,rapid and sensitive,and can meet the need of rapid screening of many kinds of drug abuse in dry blood spots. DBS samples are stable and can be stored for a longer period of time under room temperature conditions without special packaging,which meet the needs of first-line real-world remote sampling.
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