比色法测定蔬菜中的亚硝酸盐含量的探究实验

Research on Components of Nitrites in Vegetables Based on Colour-comprison

在高中化学课程标准中,针对学生的发展,"实验化学"模块提出"掌握基本的化学实验方法与技能,了解现代仪器在物质的组成、结构和性质研究中的应用"的要求.本文结合课标要求与社会生活实际,设计了一则利用不同技术手段开展探究实验的案例.

In the chemical course in high school,＂ acquiring the basic experimental methods and skills, getting to know the usage of modem test equipments in studying the material＇s components,structure and characters＂ is required by ＂testing chemistry＂. This paper designs a case in which different technical skills are employed to conduct the test by combining the course demands and the practical social life.