开放实验“超声提取果皮紫外吸收剂”的设计

Design of open experiment for ultrasonic extraction of ultraviolet absorbent in peel

设计了一个针对于中、低年级学生可以自由、自主开展的开放性实验。该实验利用超声波提取技术从果皮中提取紫外吸收剂,涉及了无机化学、分析化学、有机化学等领域的操作与知识,并使用了单因素实验与正交实验相结合的形式,以培养学生的基本实验操作技能以及灵活运用知识的能力。

An open experiment for middle and low grades students was developed. In the experiment, the ultrasonic extraction was used for extraction of the ultraviolet absorbent in peel, which involving in knowledge and operation of inorganic chemistry., analytic chemistry and organic chemistry. The experi- ment combined the single factor experiment and the orthogonal experiment. It is helpful to develop student＇ s experimental operation skills and ability to apply knowledge.