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Position: Home > Articles > 固相萃取-超高效液相色谱法测定浓缩石榴汁中羟甲基糠醛含量 Science and Technology of Food Industry 2013,34 (10) 62-64

固相萃取-超高效液相色谱法测定浓缩石榴汁中羟甲基糠醛含量

作  者:
刘学芝;何强;孔祥虹;杜宝中
单  位:
陕西出入境检验检疫局;西安理工大学理学院应用化学系
关键词:
固相萃取;超高效液相色谱法;浓缩石榴汁;羟甲基糠醛
摘  要:
建立了浓缩石榴汁中羟甲基糠醛(HMF)的超高效液相色谱(UPLC)检测方法.样品用水溶解后,用BondElutENV固相萃取柱净化,UPLCHSST3色谱柱分离,乙腈-水(8+92,V/V)为流动相,检测波长285nm,外标法定量.羟甲基糠醛的检出限为0.02mg/L,在0.1~10.0mg/L的浓度范围内标准溶液的浓度与峰面积线性关系良好,在10、20、50mg/kg三个添加水平下,回收率为80.8%~110.8%,相对标准偏差(RSD)低于8.1%.该方法简便、快速、准确,可用于浓缩石榴汁中羟甲基糠醛的检测.
单  位:
Department of Applied Chemistry,Xi'an University of Technology,Xi'an 710054,China%Inspection and Quarantine Technology Center,Shaanxi Entry-Exit Inspection and Quarantine Bureau,Xi'an 710068,China
关键词:
solid phase extraction%ultra performance liquid chromatography(UPLC)%pomegranate juice concentrate%hydroxymethylfurfural(HMF)
摘  要:
An ultra performance liquid chromatography(UPLC)method had been developed for the determination of hydroxymethylfurfural(HMF)in pomegranate juice concentrate.Samples were diluted with water,and then cleaned up with a Bond Elut ENV solid phase extraction cartridges.UPLC was performed on a UPLC HSS T3(100mm*2.1mm,1.8μm)using acetonitrile-water(8+92,V/V)as mobile phase.The detection wavelength was 285nm.Quantitation was carried out using an external standard method.The detection limit of 5-HMF was 0.02mg/L.The results showed good linear relationship at the range of 0.1~10.0mg/L.Recoveries spiked at 10、 20、50mg/kg ranged from 80.8%to 110.8%with relative standard deviations(RSD)less than 8.1%.The method was simple,fast and accurate and could be applied to the analysis of 5-HMF content in pomegranate juice concentrate.

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