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1.浙江树人学院 生物与环境工程学院,浙江 杭州 310015
2.舟山海关综合技术服务中心,浙江 舟山 316000
3.温州海关综合技术服务中心,浙江 温州 325027
李 舟,硕士,高级工程师,研究方向:食品安全检测与分析,E-mail:xiaocaixj@163.com
纸质出版日期:2024-05-15,
收稿日期:2024-01-09,
修回日期:2024-02-05,
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韩超,周秀锦,陈瑶,林宇,叶明立,李舟.超高效液相色谱-串联质谱法测定猪肾中安普霉素的残留量[J].分析测试学报,2024,43(05):787-791.
HAN Chao,ZHOU Xiu-jin,CHEN Yao,LIN Yu,YE Ming-li,LI Zhou.Determination of Apramycin Residue in Pig Kidney by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(05):787-791.
韩超,周秀锦,陈瑶,林宇,叶明立,李舟.超高效液相色谱-串联质谱法测定猪肾中安普霉素的残留量[J].分析测试学报,2024,43(05):787-791. DOI: 10.12452/j.fxcsxb.24010901.
HAN Chao,ZHOU Xiu-jin,CHEN Yao,LIN Yu,YE Ming-li,LI Zhou.Determination of Apramycin Residue in Pig Kidney by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2024,43(05):787-791. DOI: 10.12452/j.fxcsxb.24010901.
建立了猪肾中安普霉素残留量的超高效液相色谱-串联质谱(UPLC-MS/MS)测定方法。猪肾样品以磷酸二氢钾溶液提取,经HLB固相萃取柱净化后,采用CAPCELL PAK MG Ⅱ C
18
(2.0 mm×150 mm,5 µm)色谱柱分离,以0.1%甲酸水溶液和甲醇为流动相进行梯度洗脱。采用电喷雾离子源正离子模式扫描,多反应监测(MRM)模式进行检测,基质匹配同位素内标法定量。安普霉素在20~200 µg/L质量浓度范围内线性良好,相关系数(
r
2
)为0.999 3,方法定量下限为10.0 µg/kg。在10、20、100 µg/kg加标水平下的平均回收率为85.5%~94.6%,相对标准偏差(RSD)不大于5.9%。该方法基于HLB固相萃取柱净化,基质匹配同位素内标法定量,具有操作简单、定性准确、灵敏度高的特点,适用于猪肾中安普
霉素残留量的测定。
An ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) method for the determination of apramycin residue in pig kidney was established. The pig kidney samples were extracted with KH
2
PO
4
solution and purified by HLB solid phase extraction. The separation was performed by CAPCELL PAK MG ⅡC
18
(2.0 mm×150 mm,5 µm) column by gradient elution,with 0.1% formic acid aqueous solution and methanol as mobile phases. The compound was analyzed in electrospray ion source positive ion mode under multi-reaction monitoring(MRM) mode. The matrix-matched isotope internal standard method was used for quantification. Apramycin showed good linearity in the concentration range of 20-200 µg/L with a correlation coefficient(
r
2
) of 0.999 3. The limit of quantification was 10.0 µg/kg. The average recoveries at spiked levels of 10,20,100 µg/kg were 85.5%-94.6% with relative standard deviations(RSDs) not greater than 5.9%. Based on HLB solid phase extraction column purification and quantification by matrix-matched isotope internal standard method,this method has the characteristics of simple operation,accurate qualitative and high sensitivity. It is suitable for the determination of ampramycin residue in pig kidney.
超高效液相色谱-串联质谱法安普霉素猪肾基质匹配同位素内标
ultra performance liquid chromatography-tandem mass spectrometryapramycinpig kidneymatrix-matchisotopic internal standard
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