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Updated: Nov 4, 2025

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
Published on: March 22, 2019
New DRIFT spectroscopic methodology for acquiring infrared spectra of fiberglass materials
Evgeniy A Paukshtis1, Evgenii V Kovalyov1, Tatiana S Glazneva1
1Boreskov Institute of Catalysis, Pr. Ak. Lavrentieva 5, Novosibirsk 630090, Russia.
Abstract:
We report a new approach for infrared spectroscopic analysis of fiberglass materials using a mirror substrate, which allowed the specular reflection from the sample surface to be minimized and detect the light passing through the sample. The application of this technique for platinum-containing fiberglass catalysts made it possible for the first time to identify sulfate compounds formed in glass fibers during the oxidation reaction of sulfur dioxide. The developed technique can be applied for a number of research samples that are difficult to analyze by conventional IR spectroscopic methods.
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