ZHANG Hai-chao,WANG Jing,JIA Hai-tao,et al.Determination of Tretoquinol in Pungent Spice by Solid-phase Extraction Coupled Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(07):1086-1090.
ZHANG Hai-chao,WANG Jing,JIA Hai-tao,et al.Determination of Tretoquinol in Pungent Spice by Solid-phase Extraction Coupled Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(07):1086-1090. DOI: 10.3969/j.issn.1004-4957.2021.07.017.
An ultra-performance liquid chromatography-tandem mass spectrometric(UPLC-MS/MS) method was developed for the determination of tretoquinol in pungent spice with MCX solid-phase extraction(SPE) purification. The samples were extracted with 0.2% acid ethanol, purified with a MCX column, and quantified by UPLC-MS/MS in MRM mode after gradient elution on an ACQUITY BEH C,18, column with acetonitrile and 0.1% formic acid solution as mobile phase. The results showed that the calibration curves were linear in the range of 0.1-50 ng/mL with correlation coefficients(,r,) more than 0.998. The limits of detection (LODs) were 0.2 μg/kg and the limits of quantitation (LOQs) were 0.5 μg/kg. The average recoveries of tretoquinol at four different spiked levels (0.5, 2, 10, 100 μg/kg) ranged from 74.5% to 98.8%,with relative standard deviations(RSD) of 3.1%-9.1%. The proposed method is sensitive, accurate and reliable, and could be used for the determination of tretoquinol in pungent spice.
关键词
曲托喹酚固相萃取超高效液相色谱-串联质谱(UPLC-MS/MS)香辛调料
Keywords
tretoquinolsolid-phase extractionultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)pungent spice
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