06 IR ATR_page_7

06 IR ATR | page 7 | https://thedailydialectics.com/pdfs/education/chemistry/analytical-chem/analytical-methods-for-analysis-UH/06 IR ATR/06 IR ATR.pdf

Chem4229-Instrumental Methods of Analysis B. Dispersive spectrometers Conventional infrared spectrometers (Figure 3) or dis- persive infrared spectrometers have two beams of ra- diation, one passing through the sample, the other passing through a reference cell or just air. A particular frequency…