Abstract By using common laboratory equipments, the qualitative analysis of the volatile components in onion such as sulfide, alcohols, aldehydes and carboxylic acid was designed to let the pre-service teachers to experience inquiry learning, grasp the method of experiment design and develop the ability of exploration.
GUO Yan-Qing . Qualitative Analysis Experiment of Volatile Chemicals in Onions for Pre-Service Teachers[J]. Chinese Journal of Chemical Education, 2017, 38(14): 45-47.
