Instrument introduction:Spectrum tow Fourier transform infrared spectrometer has the characteristics of fast scanning rate, high resolution, stable repeatability and so on. The detection light (infrared light) is divided into two beams using a Michelson interferometer and reflected on the moving mirror and the fixed mirror back to the beam splitter. The two beams are coherent light with broadband and will interfere. Coherent infrared light is irradiated on the sample and collected by the detector to obtain the infrared interferogram data containing the sample information. After the computer performs Fourier transform on the data, the infrared spectrum of the sample is obtained. The main principle is based on the vibrational and rotational energy levels in the molecule, which absorb under infrared light and cause energy level transitions. That is, molecules that can produce dipole moment changes have infrared absorption, which can be used to identify the molecular structure and chemical groups of the unknown. The test samples are mostly solid or liquid.

Technical parameter:

Scanning range: 8300-350cm-1

Spectral resolution: better than 0.5cm-1

Wavelength accuracy: 0.01cm-1

Wavelength accuracy: 0.1cm-1

Signal-to-noise ratio: 14500:1 (5s test, peak-to-peak value)