Results 11 to 20 of about 1,105,025 (337)

Validation of the Developed Zero-Order Infrared Spectrophotometry Method for Qualitative and Quantitative Analyses of Tranexamic Acid in Marketed Tablets

open access: yesMolecules, 2021
(1) Background: The functional groups present in tranexamic acid allow direct infrared detection analysis. This study aimed to develop, apply, and validate an infrared spectrophotometry method used for qualitative and quantitative analyses of tranexamic ...
Nerdy Nerdy   +5 more
doaj   +2 more sources

Transmission enhancement through square coaxial apertures arrays in metallic film: when leaky modes filter infrared light [PDF]

open access: yes, 2014
We consider arrays of square coaxial apertures in a gold layer and study their diffractive behavior in the far infrared region. These structures exhibit a resonant transmission enhancement that is used to design tunable bandpass filters.
Bedu, Frédéric   +8 more
core   +4 more sources

Fourier transform infrared spectrophotometry and X-ray powder diffractometry as complementary techniques in characterizing clay size fraction of kaolin

open access: yesJournal of Applied Sciences and Environmental Management, 2005
This study aimed at demonstrating complementary roles offered by both Fourier transform infrared (FTIR) spectrophotometry and x-ray powder diffraction (XRPD) techniques in characterizing clay size fraction of kaolins.
Georges-Ivo E Ekosse
doaj   +2 more sources

Quantitative analysis of pharmaceutical products by spectrophotometry in the infrared region: a practical review

open access: yesDrug Analytical Research, 2023
Quality control in the chemical-pharmaceutical industry to identify and quantify the active ingredient has fundamental importance to guarantee the quality of the final product.
Ana Kogawa, Hérida Regina Nunes Salgado
doaj   +9 more sources

Featureless transmission spectra of 12 giant exoplanets observed by GTC/OSIRIS [PDF]

open access: yesA&A 675, A62 (2023), 2023
Exoplanet atmospheres are the key to understanding the nature of exoplanets. To this end, transit spectrophotometry provides us opportunities to investigate the physical properties and chemical compositions of exoplanet atmospheres. We aim to detect potential atmospheric signatures in 12 gaseous giant exoplanets using transit spectrophotometry and we ...
arxiv   +1 more source

Infrared Macrothermoscopy Patterns—A New Category of Dermoscopy

open access: yesJournal of Imaging, 2023
(1) Background: The authors developed a new non-invasive dermatological infrared macroimaging analysis technique (MacroIR) that evaluates microvascular, inflammatory, and metabolic changes that may be dermoscopy complimentary, by analyzing different skin
Flavio Leme Ferrari   +3 more
doaj   +1 more source

Actual applications of infrared spectrophotometry in determining the quality of daily products

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2022
Fourier transform infrared spectroscopy (FTIR) is a fast and non-destructive analytical method. Combined with chemometrics, it is a powerful tool for the pharmaceutical, cosmetics and food industries.
Natalia Rotari   +2 more
doaj   +1 more source

Synthesis and virtual screening of bis-(4-(tert-butyl)-N-(methylcarbamothioyl) benzamide)-Iron (III) complex as an anticancer candidate [PDF]

open access: yesPharmaciana, 2021
Thiourea derivatives were much used in drug discovery and drug-making, such as for an anticancer. The formation of drug complexes can increase lipophilicity through chelation formation, and the drug action is significantly upward due to the effective ...
Ruswanto Ruswanto   +3 more
doaj   +1 more source

Application of Fourier Transform Infrared Spectrophotometry Method for Analysis of Metformin Hydrochloride in Marketed Tablet Dosage Form

open access: yesJurnal Kimia Valensi, 2021
The first line drug given for monotherapy for diabetes mellitus type 2 is metformin hydrochloride, which is a biguanide antihyperglycemic drug. The aim of this research was to develop, validate, and apply the Fourier Transform Infrared spectrophotometry ...
Nerdy Nerdy   +7 more
doaj   +1 more source

Determination of Vitamin C in Foods Using the Iodine-Turbidimetric Method Combined with an Infrared Camera

open access: yesApplied Sciences, 2020
A novel method was proposed for the determination of vitamin C (VC) using an infrared camera combined with the iodine-turbidimetric method. Based on the redox between VC and iodine, the residual iodine was measured using the turbidimetric method with an ...
Yi Miao   +7 more
doaj   +1 more source

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