Exploration and Practice of Instrumental Analysis Designing Experiment Teaching: Comparison of Three Spectrophotometry Methods for the Determination of Vitamin C Content
ZHANG Ping-Ping, WU Xiao-Hui, TANG Chuan-Qiu**
Department of Chemical and Environmental Engineering, Hanjiang Normal University, Shiyan 442000, China
Abstract Instrumental analysis designing experiment is an important way to cultivate innovative ability of college students. According to the characteristics of instrumental analysis experiment course, this paper presents a designing experiment “comparison of three spectrophotometry methods for vitamin C content”. Through the literature survey, principle description, scheme establishment, sample preparation, program development, performance testing, and data processing, the students can get the development of capability and innovative ability. A standard curve for each method respectively was established. The correlation coefficient, recovery and relative standard deviation were also compared. The accuracy and precision for the 3 detection methods was further researched. Practice demonstrates that the designing experiment can be beneficial to improve the practical capability, innovative ability, basic scientific literacy and comprehensive quality for college students.
ZHANG Ping-Ping, WU Xiao-Hui, TANG Chuan-Qiu. Exploration and Practice of Instrumental Analysis Designing Experiment Teaching: Comparison of Three Spectrophotometry Methods for the Determination of Vitamin C Content[J]. Chinese Journal of Chemical Education, 2021, 42(10): 40-44.
