碘量法测葡萄糖含量的数字化实验开发  

Development of Digital Experiment for Measuring Glucose Content by Iodometry

作　　者：温霞 徐琦 王海军[2] 杜钦之 张明晓[2] 陈时洪[2] WEN Xia;XU Qi;WANG Hai-Jun;DU Qin-Zhi;ZHANG Ming-Xiao;CHEN Shi-Hong(Teacher Training College,Beibei,Chongqing 400700,China;School of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715,China;Chongqing No.8Middle School,Chongqing 400030,China)

机构地区：[1]重庆市北碚区教师进修学院,重庆400700 [2]西南大学化学化工学院,重庆400715 [3]重庆市第八中学校,重庆400030

出　　处：《化学教育（中英文）》2024年第19期83-88,共6页Chinese Journal of Chemical Education

基　　金：重庆市教育科学“十三五”规划课题“中学化学数字化实验系统的开发和应用”(2020-11-219)。

摘　　要：应用自制的MXLab-21先进数字化实验系统,开发碘量法测定葡萄糖含量的数字化实验。与传统碘量法测葡萄糖相比,该数字化实验无需I_(2)和Na_(2)S_(2)O_(3)标液,操作简便,实验误差小,且记录的电势随电解时间变化的实时曲线使得复杂的电解及氧化还原滴定过程可视化,让学生更好理解电解和氧化还原反应的微观本质,有利于化学学科核心素养的培养。A digital experiment for glucose detection by iodimetry was developed based on self-made MXLab-21advanced digital experiment system.Compared with the traditional iodine method for measuring glucose,the digital experiment does not require I2and Na2S2O3standard solution,which is easy to operate and has small experimental error.Moreover,the recorded realtime curve of the change of electric potential with electrolytic time allows the complicated electrolysis and oxidation-reduction titration process to be visualized,allowing students to better understand the microscopic nature of electrolysis and oxidation-reduction reactions.It is conducive to the cultivation of the core quality of chemistry.

关 键 词：恒电流电解 碘量法 氧化还原滴定 葡萄糖 数字化实验 

分 类 号：G434[文化科学—教育学] G633.8[文化科学—教育技术学]