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当前位置: 首页 > 文章 > 奶茶中三聚氰胺的HPLC测定方法 茶叶科学 2009,29 (1) 15-19
Position: Home > Articles > Determination of Melamine in Milk Tea By High Performance Liquid Chromatography Journal of Tea Science 2009,29 (1) 15-19

奶茶中三聚氰胺的HPLC测定方法

作  者：
江和源;袁新跃;张建勇;崔宏春;刘晓辉;尧渝
单  位：
中国农业科学院茶叶研究所
关键词：
高效液相色谱;奶茶;三聚氰胺
摘  要：
建立了奶茶中三聚氰胺的HPLC测定方法。适用检测奶茶中三聚氰胺的HPLC条件为:色谱柱SunfireC18柱(250mm×4.6mmID:5μm),流动相由0.008mol/L辛烷磺酸钠和乙腈组成,柱温30℃,流速1.0ml/min,检测波长236nm,外标法定量。分析了市场上奶茶产品的三聚氰胺含量,发现少数奶茶产品中三聚氰胺的含量超过了国家暂行限量标准的2.5mg/kg。
译  名：
Determination of Melamine in Milk Tea By High Performance Liquid Chromatography
作  者：
JIANG He-yuan1, YUAN Xin-yue1,2, ZHANG Jian-yong1, CUI Hong-chun1,2, LIU Xiao-hui1,2, YAO Yu1,2 (1. Key Laboratory of Tea and Beverage Crops Processing and Quality Control, Tea Research Institute, Chinese Academy of Agriculture Sciences, Hangzhou 310008, China; 2. Graduate School, Chinese Academy of Agriculture Sciences, Beijing 100081, China)
关键词：
HPLC, milk tea, melamine
摘  要：
The method to determinate melamine in milk tea by HPLC, was established. The samples were analyzed by a Sunfire C18 column (250 mm×4.6 mm ID; 5 μm). The mobile phase was composed of 0.008 mol/L sodium 1-Octanesulfonate (adjust to pH3.3 with acetic acid) and acetonitrile. The flow rate was 1.0 ml/min. Column temperature was 30℃. UV-detection was performed at 236 nm. The contents were quantified with exterior standard. Some milk tea samples from the supermarket were analyzed, and results showed that the content of melamine in some milk tea were higher than 2.5 mg/kg, the set limit in national standard.

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