XU Xiao-hui,WANG Xiao-qiao,DONG Wei,et al.Determination of Nine Kinds of Sulfonamides Residues in Gizzard Pepsin by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(10):1497-1502.
XU Xiao-hui,WANG Xiao-qiao,DONG Wei,et al.Determination of Nine Kinds of Sulfonamides Residues in Gizzard Pepsin by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(10):1497-1502. DOI: 10.19969/j.fxcsxb.21020302.
Determination of Nine Kinds of Sulfonamides Residues in Gizzard Pepsin by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry
In order to evaluate the risk of sulfonamides residues in Gizzard Pepsin, a comprehensive analytical method was developed for the qualitative and quantitative determination of nine kinds of sulfonamides in Gizzard Pepsin by ultra-performance liquid chromatography coupled with triple quadrupole mass spectrometry(UPLC-MS/MS) in this paper.The sample was extracted by QuEChERS with ultrasonic method,then purified with PRiME HLB.The chromatographic separation was performed on an ACQUITY BEH C,18, chromatographic column(2.1 mm × 100 mm,1.7 μm),with 0.1% formic acid-2 mmol/L ammonium acetate aqueous solution and acetonitrile containing 0.1% formic acid as mobile phases by gradient elution.The analytes were detected by electrospray ionization mass spectrometry in positive mode under dynamic multiple reaction monitoring(d-MRM) mode,and quantified by external standard method.Results showed that the nine sulfonamides showed good linearities in the concentration range of 0-50 ng/mL with their correlation coefficients(,r,2,) not less than 0.996 0.The limits of detection(LOD,,S/N = ,3) and limits of quantitation(LOQ,,S/N = ,10) were in the ranges of 0.065 4-0.715 7 µg/kg and 0.212 2-2.478 µg/kg,respectively.The recoveries for the analytes at three spiked levels were in the range of 63.2%-88.7%,with relative standard deviations(RSD) of 0.90%-7.1%.The developed method was simple,rapid and accurate,and was applied to the detection on 10 batches of Gizzard Pepsin samples,among which one was found to contain sulfamethoxazole residue.
关键词
鸡内金磺胺类药物超高效液相色谱-串联质谱QuEChERSPRiME HLB
Keywords
Gizzard Pepsinsulfonamidesultra-performance liquid chromatography-tandem mass spectrometryQuEChERSPRiME HLB
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