06 IR ATR_page_11

06 IR ATR | page 11 | 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 FT-IR is the detector-limited noise, which varies as the square root of the number of scans (VN for N scans). Hence, combining these two factors, the SNR varies with the number of scans N as = =VN. Acquiring a larger number of scans will improve the SNR.…