1.兰州市食品药品检验检测研究院,甘肃 兰州 730050
2.甘肃省医学科学研究院,甘肃 兰州 730050
3.兰州中检科测试技术有限公司,甘肃 兰州 730070
石晓峰,主任药师,研究方向:天然药物化学与中药质量标准,E-mail:shixiaofeng2005@sina.com
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许晓辉,王小乔,董蔚等.超高效液相色谱-串联质谱法测定鸡内金中9种磺胺类药物残留[J].分析测试学报,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.
许晓辉,王小乔,董蔚等.超高效液相色谱-串联质谱法测定鸡内金中9种磺胺类药物残留[J].分析测试学报,2021,40(10):1497-1502. DOI: 10.19969/j.fxcsxb.21020302.
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.
采用超高效液相色谱-串联三重四极杆质谱(UPLC-MS/MS)技术,建立了动物源性中药鸡内金中磺胺甲𫫇,唑等9种磺胺类药物残留的检测方法。样品经QuEChERS法提取,离心后上清液经PRiME HLB固相萃取柱净化,采用ACQUITY BEH C,18,柱(2.1 mm × 100 mm,1.7 μm)分离,以含0.1%甲酸-2 mmol/L乙酸铵的水溶液和含0.1%甲酸的乙腈溶液为流动相进行梯度洗脱,在电喷雾正离子模式下,以动态多反应监测模式(d-MRM)进行检测,外标法定量。结果表明9种磺胺类药物在0~50 ng/mL范围内呈良好的线性关系,相关系数(,r,2,)均不小于0.996 0,方法检出限(LOD,,S/N = ,3)和定量下限(LOQ,,S/N = ,10)分别为0.065 4~0.715 7 µg/kg和0.212 2~2.478 µg/kg;在3个加标水平下的回收率为63.2%~88.7%,相对标准偏差(RSD)为0.90%~7.1%。该方法简单、快速、准确,应用该方法筛查10批鸡内金样品,有1批检出磺胺甲𫫇,唑残留。
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.
鸡内金磺胺类药物超高效液相色谱-串联质谱QuEChERSPRiME HLB
Gizzard Pepsinsulfonamidesultra-performance liquid chromatography-tandem mass spectrometryQuEChERSPRiME HLB
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