食品科学 ›› 2012, Vol. 33 ›› Issue (2): 216-218.doi: 10.7506/spkx1002-6630-201202047

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定牛奶中的胆固醇

张 丽,汤佳佳,徐国兵,耿 超   

  1. 1.安徽中医学院药学院 2.安徽省食品药品检验所
  • 收稿日期:2017-02-16 修回日期:2017-02-16 出版日期:2012-01-25 发布日期:2012-01-16

Determination of Cholesterol in Milk by HPLC

ZHANG Li,TANG Jia-jia,XU Guo-bing,GENG Chao   

  1. 1. College of Pharmacy, Anhui University of Chinese Traditional Medicine, Hefei 230031, China; 2. Anhui Institute for Food and Drug Control, Hefei 230051, China
  • Received:2017-02-16 Revised:2017-02-16 Online:2012-01-25 Published:2012-01-16

摘要: 目的:建立高效液相色谱(high performance liquid chromatography,HPLC)法测定牛奶中胆固醇的方法。方法:色谱柱为Shimadzu C18柱(4.6mm×250mm,5μm),流动相为乙腈,流速为1.0mL/min,检测波长为203nm,柱温为30℃。结果:胆固醇的线性范围为3.58~358μg/mL(r=0.9999),平均回收率为101.8%(n=6),相对标准偏差为1.14%。结论:该方法测定结果准确、重现性好,可作为测定牛奶中胆固醇含量的方法。

关键词: 高效液相色谱法, 牛奶, 胆固醇

Abstract: Objective: To establish an HPLC method for the determination of cholesterol in milk. Methods: Cholesterol was separated on a Shimadzu C18 column (4.6 mm × 250 mm, 5 μm) using acetonitrile as mobile phase at a flow rate of 1.0 mL/min. The detection wavelength was set at 203 nm and the column temperature at 30 ℃. Results: A calibration curve was established revealing a good linear relationship in the range of 3.58-358μg/mL with a correlation coefficient of 0.9999. The average spike recovery rate was 101.8% with a RSD of 1.14%. Conclusion: The method was accurate, reproducible and applicable for the determination of cholesterol in milk.

Key words: high performance liquid chromatography (HPLC), milk, cholesterol

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