Infrared spectrometer is an advanced analytical experimental instrument that is widely used in the world. It can analyze the molecular structure and chemical composition by using the absorption characteristics of substances to infrared light of different wavelengths. Jiahong imported infrared spectrometer from Germany, it has excellent flexibility which can analyze infrared spectra of various forms of samples, such as solid, liquid, and gas. Jiahong use infrared spectrometer for infrared spectrum and qualitative analysis of unknown substances as well as performance stability evaluation of key raw material in batches.