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)