食品科学 ›› 2008, Vol. 29 ›› Issue (10): 508-511.

• 分析检测 • 上一篇    下一篇

蒸发光散射检测器在叶黄素HPLC定量分析中的应用

 蔡靳, 惠伯棣   

  1. 北京联合大学应用文理学院;
  • 出版日期:2008-10-15 发布日期:2011-12-08

Application of Evaporative Light Scattering Detector in Iutein Quantification by HPLC

 CAI  Jin, HUI  Bo-Di   

  1. College of Applied Arts and Sciences,Beijing Union University,Beijing 100083,China
  • Online:2008-10-15 Published:2011-12-08

摘要: 目的:评价叶黄素使用HPLC-ELSD进行定量分析的可能性。方法:在C30-HPLC上应用ELSD的条件:漂移管温度45℃,喷嘴温度40℃,增益1。以ELSD色谱图中的全反式叶黄素组分峰面积为标准,对ELSD的载气流量(以压力表示)进行优化。在相同色谱条件下,对叶黄素进样量与ELSD峰面积进行回归计算,确定二者的相关关系,并测定叶黄素的检测下限。结果:在最适载气压力(30psi)条件下,在10~100μg范围内,全反式叶黄素的进样量与ELSD峰面积之间在一定置信度上呈现线性关系。ELSD的检测下限为6.4111μg。结论:在一定的浓度范围内,按照线性关系,应用ELSD对叶黄素进行HPLC定量是可能的。

关键词: 蒸发光散射检测器, 叶黄素

Abstract: Objective: To conduct the possibility assessment for lutein quantification by hight performance liquid chromatographyevaporative light scattering detector (HPLC-ELSD). Method: ELSD conditions on C30-HPLC were as follows: drift temperature 45 ℃,sprayer temperature 40 ℃ and gain1. According to the peak area of all E-lutein on ELSD chromatogram,carrier gas flow rate (represented with pressure) was optimized. Under fixed chromatographic conditions,a regression of injection amount with peak area by ELSD was assessed for lutein. Additionally,the detection limit was determined. Results: Under optimized carrier gas pressure (30 psi),a linear correlationship between injection amount (in the range of 10~100μg) of all E-lutein and peak area by ELSD appears at a confidence level. Conclusion: It is possible for ELSD to be applied in lutein quantification by HPLC according to the linear relationship between peak area by ELSD and injection amount in a lutein amount range.

Key words: ELSD, lutein