LI Run-kang,LI Jia-yi,ZHANG Yun-feng,et al.Determination of γ-Hydroxybutyric Acid in Blood by MPFC-QuEChERS with GC-MS/MS[J].Journal of Instrumental Analysis,2022,41(03):386-391.
LI Run-kang,LI Jia-yi,ZHANG Yun-feng,et al.Determination of γ-Hydroxybutyric Acid in Blood by MPFC-QuEChERS with GC-MS/MS[J].Journal of Instrumental Analysis,2022,41(03):386-391. DOI: 10.19969/j.fxcsxb.21070901.
Determination of γ-Hydroxybutyric Acid in Blood by MPFC-QuEChERS with GC-MS/MS
A new method was developed for the determination of ,γ,-hydroxybutyric acid(GHB) in human blood by gas chromatography-tandem mass spectrometry(GC-MS/MS) with a kind of purification column(MPFC-QuEChERS).Effects of sample pretreatment conditions and analytical instrument conditions on the test results were investigated in the round,and the optimal experimental conditions were determined. First of all,GHB-D,6, was spiked into 0.1 mL blood sample as the internal standard,and then the analyte was extracted using ethyl acetate efficiently.After that,the supernatant was allowed to flow through the MPFC-QuEChERS purification column and evaporated to dryness.Finally,the dried residue was derivated with trifluoroacetamide(BSTFA) and analyzed in multi-reaction monitoring(MRM) mode.Experimental results showed that there were linear relationships for the spiked human blood samples in the range of 0-1 000 ng/mL(,r,2 ,>, 0.995 1).The limits of detection(LOD) and limits of quantitation(LOQ) of the method were 0.2 ng/mL and 0.5 ng/mL,respectively.The inter-day relative standard deviations(RSD) and intra-day RSD were both less than 15%.An extraction recovery of 80.1%-84.7% was obtained for the spiked human blood samples.The matrix effect ranged from 87.4% to 94.4%.The results indicated that the developed method was improved and optimized by traditional liquid-liquid extraction method,it could be applied to the rapid and effective determination of GHB in human blood samples of actual cases with its good stability and high sensitivity.
关键词
γ-羟基丁酸MPFC-QuEChERS气相色谱-串联质谱血液
Keywords
γ-hydroxybutyric acidMPFC-QuEChERSgas chromatography-tandem mass spectrometryblood
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