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食品研究与开发:2017,38(21):130-134
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UPLC-MS/MS法测定凉茶饮料中的有机酸和黄酮类化合物
韩婉清,王斌,王莉,冼燕萍*
(广州质量监督检测研究院,国家加工食品质量监督检验中心(广州),广州市食品安全检测技术重点实验室,广州市食品安全风险动态监测与预警研究中心,广东广州510000)
Quantitative Analysis of Organic Acid and Flavonoid in Herbal Tea by UPLC-MS/MS
HAN Wan-qing,WANG Bin,WANG Li,XIAN Yan-ping*
(Guangzhou Quality Supervision and Testing Institute,National Centre for Quality Supervision and Testing of Processed Food(Guangzhou),Guangzhou Key Laboratory of Detection Technology for Food Safety,Guangzhou Research Centre of Risk Dynamic Detection and Early Warning for Food Safety,Guangzhou 510000,Guangdong,China)
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投稿时间:2017-01-20    
中文摘要: 建立一种超高效液相色谱-三重四级杆串联质谱法同时测定凉茶饮料中5种有机酸和黄酮类化合物的方法。样品经高速离心,甲醇稀释后,经 BEH C18(100 mm×2.1 mm,1.7 μm)色谱柱分离,乙腈-0.1%甲酸水(体积分数)梯度洗脱,串联质谱电喷雾负离子扫描,多反应监测(MRM)模式检测。5种目标物的方法检出限在0.2 mg/L~0.5 mg/L,在0.02 mg/L~0.5 mg/L浓度范围内,线性相关系数均大于0.999 0。添加水平为1.0 mg/L~40 mg/L时,平均回收率为86.3%~102%;相对标准偏差(RSD,n=6)为2.4%~8.7%。
Abstract:A method for quantitative analysis of 5 kinds of organic acid and flavonoid compounds in herbal tea by ultra high performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)was developed.Samples were centrifuged,diluted with methanol,and separated on BEH C18(100 mm×2.1 mm,1.7 μm)column with acetonitrile-0.1%formic acid solution as mobile phase by gradient elution.Quantitative analysis was performed by a triple quadrupole MS system with negative electrospray ionization(ESI-)operated under multiple reaction monitoring(MRM)mode.The method showed a good linearity with correlation coefficients(r)larger than 0.999 0 at the concentration of 0.02 mg/L-0.5 mg/L.The limits of detection(LOD)of the method ranged 0.2 mg/L-0.5 mg/L.At the spiked level of 1.0 mg/L-40 mg/L,the average recoveries presented 86.3%-102%,with the relative standard deviation(RSD,n=6)values varied between 2.4%-8.7%.
文章编号:201721025     中图分类号:    文献标志码:
基金项目:广东省质监局科技计划项目(2015CZ13);广州市质监局科技计划项目(2015kj01)
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