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Infrared Spectroscopy

- Mar 16, 2018 -

IR (Infrared Spectroscopy, IR) research began in the early 20th century, since 1940, when the Infrared spectrometer, Infrared Spectroscopy is widely used in the study of organic chemistry.New technology (such as emission spectrum, photoacoustic spectrum, color red combination, etc.), infrared spectroscopy was developed.Can be used to detect material with chemical bonds and functional groups.

Technical background

In organic molecules to form chemical bonds or functional group of atoms in a constant state of vibration, the vibration frequency and vibration frequency of the infrared light.So use infrared irradiation organic molecule and molecular bonds or functional group can occur in the vibration absorption of different chemical bonds or functional group absorption frequencies is different, the infrared spectrum will be in a different position, thus the with what kind of chemical bonds or functional molecules can be obtained.


The applicability of the infrared spectrum of the sample is quite broad, solid, liquid or gaseous sample can be applied, inorganic, organic, macromolecular compounds can be test.In addition, the infrared spectrum also has test is rapid, convenient operation, good repeatability, high sensitivity, less sample consumption, instrument characteristics such as simple structure, therefore, it has become the most commonly used modern structural chemistry and analytical chemistry and indispensable tool.Configuration and conformation of infrared spectroscopy in the polymer, the research as well as the mechanical properties of physics, astronomy, meteorology, remote sensing, biology, medicine and other fields have a wide range of applications.