Chemical reagents are often spoiled by improper storage in storage. Some easy moisture absorption and deliquescence or hydrolysis reagent; some easily with oxygen in the air, carbon dioxide or other gases in the diffusion reaction, and some reagents affected by light and temperature will deteriorate. Therefore, according to the different properties of reagents, appropriate measures should be taken to properly preserve them.
The old name for enzymes. With special catalytic ability of the protein. It consists of organisms (animal, plant, microorganism), or enzyme as a biological catalyst. It continues to promote a large number of complex chemical reactions in living organisms. Such as amylase starch and glycogen hydrolysis catalyst into dextrin and maltose; enzymatic protein hydrolysis peptide; lipase catalyzed hydrolysis of fats into fatty acids and glycerol.