###
食品研究与开发:2019,40(15):147-151
本文二维码信息
码上扫一扫!
高效液相色谱-串联质谱法同时测定酒中6种对羟基苯甲酸酯类防腐剂
(1.河北师范大学化学与材料科学学院,河北 石家庄 050024;2.石家庄市疾病预防控制中心,河北 石家庄 050011)
Simultaneous Determination of 6 Parabens in Wine by High Performance Liquid Chromatography Tandem Mass Spectrometry
(1.College of Chemistry and Material Science,Hebei Normal University,Shijiazhuang 050024,Hebei,China;2.Shijiazhuang Center for Disease Control and Prevention,Shijiazhuang 050011,Hebei,China)
摘要
图/表
参考文献
相似文献
本文已被:浏览 1520次   下载 378
投稿时间:2019-02-25    
中文摘要: 建立高效液相色谱-串联质谱法(high performance liquid chromatography-tandem mass spectrometry,HPLC-MS/MS)同时测定酒中6 种对羟基苯甲酸酯类防腐剂的分析方法。试样用乙酸乙酯提取,经Poroshell 120 EC-C18 色谱柱(2.1 mm×75 mm,2.7 μm)进行分离,在电喷雾电离(electrospray ionization source,ESI)源负离子模式下,进行多反应监测(multiple reaction monitoring,MRM)。6 种对羟基苯甲酸酯在5 ng/mL~2 000 ng/mL 的浓度范围内线性关系良好,相关系数r2 >0.999,在低、中、高3 个加标浓度水平下的平均回收率为79.1%~107.5%,相对标准偏差(relative standard deviation,RSD)为 1.1 %~9.1 %(n=7)。方法检出限(limit of detection,LOD)为 0.8 μg/kg~1.0 μg/kg,定量限(limits of quantitation,LOQ)为 3.1 μg/kg ~3.6 μg/kg。
Abstract:A method was developed for the simultaneous determination of 6 parabens in wine by high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).The samples were extracted by ethyl acetate,separated on a Poroshell 120 EC-C18 column (2.1mm ×75 mm,2.7 μm),and determined with negative ion mode of electrospray ionization (ESI)under multiple reaction monitoring (MRM)mode.The calibration curves of 6 parabens were linear in the range of 5 ng/mL-2 000 ng/mL with good correlation coefficients (r2 >0.999).The average recoveries at the three different spiked concentrations were 79.1.%-107.5 %with relative standard deviations(RSDs,n=7)of 1.1%-9.1%.The limits of detection and quantitation of the method were 0.8 μg/kg-1.0 μg/kg and 3.1 μg/kg-3.6 μg/kg,respectively.
文章编号:201915024     中图分类号:    文献标志码:
基金项目:
引用文本:


用微信扫一扫

用微信扫一扫