论如何通过设计性实验提升学生的综合创新能力——以分光光度法同时测定维生素C和维生素E为例

王靖宇, 王蘅, 熊辉, 陈志飞, 原弘

Discussions on How to Improve the Comprehensive Innovation Abilities of Students by Designed Experiments: An Example of Simultaneous Determination of Vitamin C and E by Spectrophotometry

Jingyu Wang, Heng Wang, Xiong Hui, Zhifei Chen, Hong Yuan

表1 维生素C和维生素E的标准曲线

测试条件 标准曲线 维生素C 维生素E λ1 λ2 λ1 λ2 无水乙醇 y = 0.0928x + 0.0265 (R2 = 0.9817) y = 0.0027x + 0.0646 (R2 = 0.5842) y = 0.0024x − 0.0001 (R2 = 0.9900) y = 0.0143x + 0.0002 (R2 = 0.9999) 无水乙醇加适量稀硫酸 y = 0.1075x + 0.0124 (R2 = 0.9995) y = −0.0006x + 0.0054 (R2 = 0.6452) y = 0.0032x − 0.0198 (R2 = 0.9876) y = 0.0143x − 0.0031 (R2 = 0.9999)