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Direct linkCai, Longfei; Zhang, Xiaolin; Luo, Liquan; Lin, Huibin; Chen, Jinhua; Xu, Chunxiu; Zhong, Minghua; Liao, Xiaoning – Journal of Chemical Education, 2019
We described a simple method for detection of Fe on a thread-based analytical device. Fe reacts with 1,10-phenanthroline to form a colored band on a cotton thread; the length was measured to quantify the contents of Fe using a ruler. This method has the advantages of easy operation, low cost, easy fabrication, and reduced sample/reagent…
Descriptors: Chemistry, College Science, College Students, Science Experiments
Cai, Longfei; Ouyang, Zhuang; Huang, Xinrong; Xu, Chunxiu – Journal of Chemical Education, 2020
We developed a comprehensive training module for the undergraduates majoring in chemical education with a simple microfluidic experiment. The students were required to read a scientific reference offered by the instructor, then design and implement a microfluidic experiment for real sample analysis by making some modifications to the method…
Descriptors: Science Instruction, College Science, Undergraduate Students, Chemistry
Cai, Longfei; Wu, Yunying; Xu, Chunxiu; Chen, Zefeng – Journal of Chemical Education, 2013
An experiment was developed to demonstrate a microfluidic device in the analytical chemistry (instrumental analysis) laboratory. Students made the paper-based microfluidic device with a wax pen and a piece of filter paper and used it to determine the total quantity of amino acids in a green tea leaf
extract. The device is low cost, easy-to-make,…
Descriptors: Chemistry, Science Experiments, College Science, Science Laboratories
