A Rapid and Simplified Approach to Correct Atmospheric Absorptions in Infrared Spectra.

ABSTRACT: Infrared (IR) spectroscopy is a powerful analytical technique used to identify and quantify different components within a sample. However, spectral interference from fluctuating concentrations of water vapor and CO₂ in the measurement chamber can significantly impede the extraction of quantitative information. These temporal fluctuations cause absorption variations that interfere with the sample's spectrum, making accurate analysis challenging. While several techniques to overcome this problem exist in the literature, many are time-consuming or ineffective. We present a simple method utilizing just two sample spectra taken sequentially. The difference of these spectra, multiplied by a scaling factor, determined by minimization of the point-to-point spectral length, provides a co

SUBMITTER: Ahmed W 

PROVIDER: S-EPMC11561874 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature