大学化学 >> 2017, Vol. 32 >> Issue (1): 44-47.doi: 10.3866/PKU.DXHX201605014

化学实验 上一篇    下一篇

溶液密度法测定糖水溶液中糖分含量——推荐一个基础化学实验

李婉1,*(),黄微1,刘济红1,高明丽1,孙静2   

  1. 1 中国科学技术大学化学实验教学中心, 合肥 230026
    2 中国科学技术大学化学与材料学院, 合肥 230026
  • 发布日期:2017-01-13
  • 通讯作者: 李婉 E-mail:liwan@ustc.edu.cn
  • 基金资助:
    2015安徽省高等学校省级质量工程重点项目(2015jyxm012);中科大“十三五”校级教材立项项目(2015jc53)

Determination of Sucrose Content by the Solution Density

Wan LI1,*(),Wei HUANG1,Ji-Hong LIU1,Ming-Li GAO1,Jing SUN2   

  1. 1 Chemistry Experiment Teaching Center, University of Science and Technology of China, Hefei 230026, P. R. China
    2 School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, P. R. China
  • Published:2017-01-13
  • Contact: Wan LI E-mail:liwan@ustc.edu.cn
  • Supported by:
    2015安徽省高等学校省级质量工程重点项目(2015jyxm012);中科大“十三五”校级教材立项项目(2015jc53)

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摘要：

介绍了一个基础化学实验——溶液密度法测定糖水溶液中糖分含量。该实验通过糖分含量-密度工作曲线测定糖水溶液中的蔗糖含量，并估算饮料中的糖含量。实验涉及多项化学实验基本操作以及作图法等实验技能，推荐作为大一学生的前期实验开设。

关键词: 糖分含量测定, 基础化学实验, 化学基本操作, 实验教学

Abstract:

A basic chemistry experiment of the determination of sucrose content by the solution density is introduced. It covers several basic chemistry operations as well as the technique of graphic data treatment. The experiment is close to the life and flexibly designed, making it a good beginning experiment for freshmen.

Key words: Sucrose content determination, Basic chemistry experiment, Basic chemistry operations and skills, Laboratory teaching