食用植物油品种鉴定实验的研究  

Rescearing on comprehensive identification chemical experiment of edible vegetable oil

作　　者：何文绚[1] 

机构地区：[1]闽江学院化学与化学工程系,福建福州350108

出　　处：《实验室科学》2011年第5期91-92,96,共3页Laboratory Science

摘　　要：介绍了一个综合型化学实验———食用植物油品种鉴定的实验步骤及教学方案的设计思路。该实验通过甲酯化的方法使植物油中的各种脂肪酸甘油酯转化成各种脂肪酸甲酯,从而用气相色谱定性脂肪酸种类及构成比例。根据实验结果,依据国家标准规定的各种食用植物油设定值,判断学生自己收集的食用植物油品的种类。In this paper,a comprehensive chemical experimental procedures was introduced—design ideas of teaching programs and indentification of edible vegetable oil.Fatty acids in vegetable oil were transformed into a variety of fatty acid methyl ester by methyl esterification.GC was used to analyze fatty and its composition ratio.According to the experimental results and based on settings in national standards for edible vegetable oil,vegetable oil samples collected by students were identified.

关 键 词：综合化学实验 植物油 气相色谱 

分 类 号：O656[理学—分析化学]