Attenuated total reflectance Fourier transform (ATR-FTIR) spectroscopy and chemometrics for organic cinnamon evaluation

Review of quantitative and qualitative methods for monitoring photopolymerization reactions

“…In addition, when testing thin films, the molecular absorption coefficients in near-infrared are quite small, requiring a larger sample volume to obtain an unintended signal. 157–166…”

“…In addition, when testing thin films, the molecular absorption coefficients in near-infrared are quite small, requiring a larger sample volume to obtain an unintended signal. [157][158][159][160][161][162][163][164][165][166] The basic analysis of the reflectivity suitability of NIR spectroscopy for on-line monitoring of the conversion rate of very thin, both transparent and pigment-containing, acrylate coatings on various substrates (i.e., PP film, paper, wood, MDF) was performed by Scherzer et al 30,167,168,311 This technique can be successfully used to monitor the conversion of double acrylate bonds in thin layers around a few μm under UV exposure, both on a laboratory scale and on a semi-technical coating line. [169][170][171] In addition, a very good linear correlation has been found between the results of the NIR technique and those of the FTIR spectroscopy and the HPLC technique for the determination of monomer conversions, although chromatographic methods show higher conversion values than spectroscopic methods.…”

Comparison effects of Ferula gummosa essential oil and Beta-pinene Alginate nanoparticles on human melanoma and breast cancer cells proliferation and apoptotic index in short term normobaric hyperoxic model

“…Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy is useful for determining functional groups in various compounds [ 34 ]. Analysis of ATR-FTIR (Bruker Company, Model Tensor II, USA) was used to confirm the presence of F. gummosa EO and β-pinene in the alginate nanoparticles; these spectra are recorded in the range of 400–4000 cm − 1 (Step 2, Fig.…”