食品科学 ›› 2004, Vol. 25 ›› Issue (3): 147-149.
• 分析检测 • 上一篇 下一篇
张明霞, 庞建光, 周建科
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ZHANG Ming-Xia, PANG Jian-Guang, ZHOU Jian-Ke
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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
张明霞, 庞建光, 周建科. 气相色谱法测定膨化食品中氯丙醇类化合物[J]. 食品科学, 2004, 25(3): 147-149.
ZHANG Ming-Xia, PANG Jian-Guang, ZHOU Jian-Ke. Gc Determination of Chloropropanols in Expanded Food Products[J]. FOOD SCIENCE, 2004, 25(3): 147-149.
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