Dr. Ying Sing Fung received his BSc and MPhil from the University of Hong Kong, Hong Kong SAR, China, in 1975 and 1977, respectively, and his PhD from the Imperial College of Science, Technology and Medicine, University of London, United Kingdom, in 1980. He is currently associate professor in the Department of Chemistry at the University of Hong Kong. He has been a member of the editorial board of Journal of Chemical Education (Chinese Chemical Society) and Journal of Biochemical and Biophysical Methods (Elsevier Science, the Netherlands). He holds four patents and has authored or co-authored 12 books and reviews, more than 130 journal articles, and 290 conference papers.

Dr. Qidan Chen received her PhD from the University of Hong Kong, Hong Kong SAR, China, in 2010. She is associate professor at Zhuhai College, Jilin University. Her research interests include the application of nanomaterial in microfluidic-chip capillary electrophoresis (MC-CE) devices and in food testing research, using various international advanced technologies based on semiconductor nanoparticles, microfluidic electrophoresis devices, and laser fabrication techniques, and the development of novel analytical methodology for the determination of toxic environmental pollutants and new analytical methods for the determination of contaminants in food. She has more than 20 publications in journals and presentations at international conference proceedings. She is a co-editor of this book and the principal author of chapters 10 and 11.

Dr. Fuying Du received her PhD from the University of Hong Kong, Hong Kong SAR, China, in 2012. She took a postdoctoral position in the Department of Water Quality Engineering, Wuhan University for two years prior to appointment to her current position as a lecturer in the Department of Water Quality Engineering, Wuhan University. Her research interests include electrochemical sensor and electrochemical bio