Attenuated total reflection (ATR) FTIR spectroscopy was performed with an FTS-6000 spectrometer (DIGILAB) equipped with a diamond ATR crystal sample cell (SMITHS, nine effective internal reflections).

ATR’s sales have more than doubled in the past two years, rising from a full-year order tally of 26 aircraft in 2022, followed by 40 in 2023, 56 in 2024 and 30 and counting for 2025.

Gingival crevicular fluid (GCF) is an exudate originating in the epithelium lining of the gingival sulcus. GCF analysis can represent a simple and noninvasive tool for monitoring periodontal and bone ...

The electrochemical doping of emeraldine salt and emeraldine bases with different weight average molecular weights was studied by in situ Fourier transform infrared (FTIR) spectroelectrochemistry ...

The FTIR-ATR was able to generate data for prediction and classification of samples adulterated with sodium bicarbonate, sodium hydroxide, hydrogen peroxide, starch, sucrose and urea, being a fast and ...

“This marks the largest ATR order since 2017,” ATR said. The aircraft will replace and grow UNI Air’s fleet of 14 ATR 72-600s, with deliveries anticipated between 2027 and 2032.