食品科学 ›› 2007, Vol. 28 ›› Issue (8): 332-336.

• 分析检测 • 上一篇    下一篇

HPLC紫外检测法测定辣椒制品中苏丹红I~IV号含量的研究

 李吉平, 刘文森, 高宏伟, 宋日哲, 陈悦明   

  1. 军事医学科学院军事兽医研究所; 长春市疾病预防控制中心; 长春市疾病预防控制中心 吉林长春130062; 吉林长春130062; 吉林长春130033;
  • 出版日期:2007-08-15 发布日期:2011-10-24

Determination of Sudan I~IV in Capsicum Foods with UV Detecter and High Performance Liquid Chromatography (HPLC)

 LI  Ji-Ping, LIU  Wen-Sen, GAO  Hong-Wei, SONG  Ri-Zhe, CHEN  Yue-Ming   

  • Online:2007-08-15 Published:2011-10-24

摘要: 实验选用氟罗里硅土(FLORISIL)固相萃取(SPE)柱对样品进行净化,用DIKMA公司C18(150×4.6mm,5μm)钻石柱为色谱柱,以含5%水的乙腈溶液为流动相,以229nm为检测波长,对辣椒食品中的苏丹红I~IV号进行了分离和检测。结果显示:苏丹红I~IV号分别在0.625~2000ng、2.5~2000ng、5~2000ng、5~2000ng范围内呈良好的线性关系,相关系数R2分别为1、1、0.9989和0.9990。其标准回收率分别为100.76%、100.20%、99.86%、100.09%,变异系数分别为1.04%、1.80%、3.29%、3.06%。辣椒粉样品中的苏丹红I~IV号的加样回收率分别为102.14%、103.69%、96.36%和101.93%,变异系数分别为1.49%、0.84%、0.93%和3.64%;辣椒油样品中的苏丹红I~IV号的加样回收率分别为97.03%、100.81%、94.53%和99.31%,变异系数分别为2.85%、1.71%、1.92%和2.79%。苏丹红I~IV号的最低检测限分别为1.88、2.5、6.25和10μg/kg。该方法样品处理简单,灵敏度高,可在有关实验室推广应用。

关键词:  , 高效液相色谱, 苏丹红, 测定

Abstract: Objective: This study established a method based on high performance liquid chromatography (HPLC) with solid phase extraction for determining Sudan I~IV in food. Methods: The Sudan I~IV were extracted with N-hexane and purified with FLORISIL solid phase extraction from food, and separated on a C18 column with 5% water of acetonitrile solution as the mobile phase, and detected at 229 nm. Results: The calibration curves of Sudan I~IV show good linearity in the different ranges 0.625~2000 ng (R2=1), 2.5~2000 ng (R2=1), 5~2000 ng (R2=0.9989) and 5~2000 ng (R2=0.9990) respectively. The detection limits of Sudan I~IV are 1.88, 2.5, 6.25 and 10μg/kg, respectively. The standard recovery rates of Sudan I~IV are 100.76%, 100.20%, 99.86% and 100.09%, respectively. The paprica application of sample recovery rates are 102.14%, 103.69%, 96.36% and 101.93%, respectively. The capsicol application sample recovery rates are 97.03%, 100.81%, 94.53% and 99.31%, respectively. Conclusions: This method is simple, rapid, accurate, reliable and applicable for routine analysis.

Key words: HPLC, Sudan, determination