食品科学 ›› 2004, Vol. 25 ›› Issue (3): 147-149.

• 分析检测 • 上一篇    下一篇

气相色谱法测定膨化食品中氯丙醇类化合物

 张明霞, 庞建光, 周建科   

  1. 河北工程学院,河北大学理化分析研究中心
  • 出版日期:2004-03-15 发布日期:2011-10-24

Gc Determination of Chloropropanols in Expanded Food Products

 ZHANG  Ming-Xia, PANG  Jian-Guang, ZHOU  Jian-Ke   

  1. 1.Hebei Engineering College;2.Research Center of Physics and Chemistry Analysis,Hebei University
  • Online:2004-03-15 Published:2011-10-24

摘要: 本文建立了检测膨化食品中3-氯-1,2-丙二醇和1,3-二氯-2-丙醇含量的方法。采用乙醚索氏提取、甲醇净化,再经N,O-双(三甲基硅烷)三氟乙酰胺(BSTFA)衍生,毛细管气相色谱法分离,FID作检测器。方法检出限为0.01mg/kg,回收率85%~5%。

关键词: 膨化食品, 氯丙醇, 毛细管气相色谱法

Abstract: An improved method for determination of 3-chloro-1,2- propanediol and 1,3-dichloro-2- propanol in expanded foodproducts was presented. Chloropropanols were extracted with diethyl ether in reflux extractor, then purified with methanol incentrifuge tube. The identity of N,O-bis(trimethylsily)trifluoroacetamide derivatives was confirmed by capillary gas chromatog-raphy with flame ionization detection. The detection limit of the method was 0.01μg/g . Recoveries of chloropropanols rangedfrom 85 to 95% .

Key words: expanded food products, chloropropanols, gas chromatography