食品科学 ›› 2008, Vol. 29 ›› Issue (7): 325-327.

• 分析检测 • 上一篇    下一篇

高效液相色谱定量分析腐乳中的莫纳可林K

吴波,张寒俊, 胡志雄   

  1. 武汉工业学院分析测试中心; 武汉工业学院分析测试中心 湖北武汉430023; 湖北武汉430023
  • 出版日期:2008-07-15 发布日期:2011-07-28

Determination of Monacolin K in Sufu by High Performance Liquid Chromatography

 WU  Bo, ZHANG  Han-Jun, HU  Zhi-Xiong   

  1. Center of Analysis and Measurement, Wuhan Polytechnic University, Wuhan 430023, China
  • Online:2008-07-15 Published:2011-07-28

摘要: 采用Nova-PakC18色谱柱(150×3.9mm,4μm),水(含0.3%H3PO4);乙醇为流动相,梯度洗脱,流速0.50ml/min,柱温50℃,测定波长(λ)237nm,定量分析腐乳中莫纳可林K,结果显示,酸型和内酯型莫纳可林K分别在0.2~14mg/L时呈线性关系,加样平均回收率分别为89.7%、94.8%,相对标准偏差1.5%~2.9%。

关键词: 高效液相色谱, 腐乳, 莫纳可林K

Abstract: The monacolin K in sufu was separated by high performance liquid chromatography (HPLC) with Nova-Pak C18 column(150×3.9 mm, 4μm) at 50 ℃.The mixed solution of water (containing 0.3% phosphatic acid) and ethanol was used as mobile phase for gradient elution at a rate 0.50 ml/min. And the absorbance was measured at 237 nm. The results showed that when the contents of acid form and lactone form monacolin k are in 0.2~14 mg/L, there are good linear relationships between absorbance and content respectively. The average recoveries are 89.7%, and 94.8%, and relative standard deviations range between 1.5% to 2.9%, respectively.

Key words: HPLC, sufu, monacolin K