Undergraduate Comprehensive Chemical Experiment: Liquid Phase Synthesis of Monodisperse Au Nanoparticles and Rapid Detection of Melamine
SUN Gen-Ban1,2, LIN Hao2, LI Ya-Jing2, LIAO Qing-Liang1, ZHANG Yue1
1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. College of Chemistry, Beijing Normal University, Beijing 100875, China
Abstract In this paper, a rapid estimated value of melamine content in milk was carried out by using color changes generated by the interaction between Au nanoparticles and melamine.Transmission electron microscopy (TEM) was used to characterize the morphology of Au nanoparticles before and after the interaction of melamine to clarify the mechanism. Comprehensive chemical experiments for the quantitative determination of melamine in milk by drawing standard working curve with UV-visible absorption spectral data. The experiment is close to life and can be applied to practice. Meanwhile, it is also helpful for students to master the basic operations of inorganic chemistry and analytical chemistry, which has a significant impact on enhancing students' ability to analyze and solve problems and improving students' scientific literacy.
SUN Gen-Ban, LIN Hao, LI Ya-Jing, LIAO Qing-Liang, ZHANG Yue. Undergraduate Comprehensive Chemical Experiment: Liquid Phase Synthesis of Monodisperse Au Nanoparticles and Rapid Detection of Melamine[J]. Chinese Journal of Chemical Education, 2018, 39(24): 49-54.
