Webb10 dec. 2024 · Fourier transform infrared attenuated total reflectance (FTIR-ATR) spectroscopy has been used to determine the nitrate content in aqueous solutions. However, the conventional water deduction algorithm indicated considerable limits in the analysis of samples with low nitrate concentration. In this study, FTIR-ATR spectra of … Webb13 apr. 2024 · Concatenation of fluorescence, mid- and near-infrared spectra data gave correct classifications of 100% in line with the findings of Li et al., who achieved to detect the presence of soybean oil in olive oil samples at a level of 2% by applying PCA and linear discriminant analysis to laser-induced fluorescence spectra.
(PDF) Principal Component Analysis of Near-Infrared Spectra of ...
WebbInfrared and Raman characteristic frequencies of organic molecules by ... Thank you for your suggestions in the analysis of FTIR spectrum. Cite. 18th May, 2024. Joseph … Webb12 maj 2001 · This paper presents a new approach to near-infrared spectral (NIR) data analysis that is based on independent component analysis (ICA). The main advantage of the new method is that it is able to separate the spectra of the constituent components from the spectra of their mixtures. robert cooling
Analysis of Mixtures by FT-IR: Spatial and Spectral …
Webb5 sep. 2024 · For systematic evaluation, the IR spectrum is commonly divided into some sub-regions. In the region of 4000 - 2000 cm –1, the appearance of absorption bands … WebbYou can use FT- IR spectroscopy in quantitative analysis. Select the band in the pretty empty region of the spectrum. Prepare different Conc. of the sample and measure the … WebbIn the early days of infrared spectroscopy, the includes available select of analysis was transmission. For analysis by transmission, the random needed toward be made … robert cooling ophthalmology