Results 21 to 30 of about 1,064,285 (340)

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

An Infrared Standard Curve Method for Calculating the Total Amount of Petroleum in Environmental Samples

open access: yesYankuang ceshi, 2022
BACKGROUND Petroleum oil is one of the necessary indicators for environmental monitoring, which mainly exists in the form of hydrocarbons. Therefore, infrared spectrophotometry is one of the most reliable methods to determine the total amount of ...
AN Caixiu   +5 more
doaj   +1 more source

Is it possible to predict milk processing into butter using infrared spectroscopy?

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2021
Description of the subject. Given the current low price of milk, a lot of producers have decided to process their milk into products with a higher added-value, including butter. However, all milks are not suitable to be transformed into butter.
Émilie Lefébure   +8 more
doaj   +1 more source

Measurement of the degree of unsaturation of oils and fats using infra-red spectroscopy and its relationship with iodine value

open access: yesGrasas y Aceites, 1992
An spectroscopy method to fast determination of the degree of unsaturation of oils and fats is described by measurement of intensity of the olefinic band at 3007 cm-1 Using SNGLE program, the peak heigt and peak area and also 1st derivate and 2nd ...
S. Muniategui, P. Paseiro, J. Simal
doaj   +1 more source

Characterization and discrimination of soils by their reflected electromagnetic energy [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2002
The objective of this work was to verify if reflected energy of soils can characterize and discriminate them. A spectroradiometer (Spectral reflectance between: 400-2,500 nm) was utilized in laboratory. The soils evaluated are located in Bauru region, SP,
José Alexandre M. Demattê
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

Transit spectrophotometry of the exoplanet HD189733b. I. Searching for water but finding haze with HST NICMOS [PDF]

open access: yes, 2009
We present Hubble Space Telescope near-infrared transit photometry of the nearby hot-Jupiter HD189733b. The observations were taken with the NICMOS instrument during five transits, with three transits executed with a narrowband filter at 1.87 microns and
A. Lecavelier des Etangs   +50 more
core   +3 more sources

Autotrophic and Heterotrophic Growth Conditions Modify Biomolecole Production in the Microalga Galdieria sulphuraria (Cyanidiophyceae, Rhodophyta) [PDF]

open access: yes, 2020
Algae have multiple similarities with fungi, with both belonging to the Thallophyte, a polyphyletic group of non-mobile organisms grouped together on the basis of similar characteristics, but not sharing a common ancestor.
Barone, R.   +13 more
core   +1 more source

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