With FTIR testing, the light is measured using an infrared spectrometer which produces the output of an infrared spectrum. The FTIR spectrum is displayed as a chart. The vertical axis shows how much infrared light the substance absorbs. The horizontal axis represents the frequency, or wavelength, ...
Figure 4. FTIR Spectroscopy functional group correlation table Near-IR Spectroscopy The Near-IR portion of the electromagnetic spectrum falls between 4,000 to 12,800 cm-1. This region consists of overtones (two of the same vibrational modes occurring simultaneously) and combinations (two different ...
The following table (Table 1) shows a number of the different approaches to LMS. Each argues that the chromatogram needs to be divided into slices and then integrated, but there is variation on the number of slices that need to be used. One could theoretically use a range of molecular ...
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