IR spectra of selected gases
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Gas:
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This tool allows to view spectra of selected gases in near- and mid- infra-red range.
- Select the gas from the combo-box list.
- From the Y-axis combo-box select the version of the graph: Absorbance or Transmitance
- From the X-axis combo-box select if the spectrum should be presented in Wavenumber [cm-1] or in Wavelength [µm]
- To zoom in an interesting part of the spectrum please select its area with mouse
- Click the left mouse button on the graph to zoom out to the full view of spectrum
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Absorbance
Logarithmic ratio of the radiation falling upon a material, to the radiation transmitted through a material
Transmitance
Ratio of the radiation transmitted through a material to the radiation falling upon a material
Wavenumber [cm-1]
Wavenumber is a reciprocal of the wavelength and shows how many waves fit in 1cm
Wavelength [µm]
IR radiation wavelengths extend from 0.7µm to 1000µm (1mm)