Results 21 to 30 of about 2,848,407 (282)

Herbal Medicine Characterization Perspectives Using Advanced FTIR Sample Techniques – Diffuse Reflectance (DRIFT) and Photoacoustic Spectroscopy (PAS)

open access: yesFrontiers in Plant Science, 2020
This study demonstrates the significant potential of the Fourier transform infrared spectroscopy (FTIR) sampling methods: cantilever-enhanced Fourier transform infrared photoacoustic spectroscopy (FTIR PAS) and diffuse reflectance infrared spectroscopy ...
Agnese Brangule   +2 more
doaj   +1 more source

An evaluation of IASI-NH3 with ground-based Fourier transform infrared spectroscopy measurements [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Global distributions of atmospheric ammonia (NH3) measured with satellite instruments such as the Infrared Atmospheric Sounding Interferometer (IASI) contain valuable information on NH3 concentrations and variability in regions not yet covered by ...
E. Dammers   +28 more
doaj   +1 more source

An Alternate Method for Fourier Transform Infrared (FTIR) Spectroscopic Determination of Soil Nitrate Using Derivative Analysis and Sample Treatments [PDF]

open access: yes, 2010
This study aimed at examining effective sample treatments and spectral processing for an alternate method of soil nitrate determination using the attenuated total reflectance (ATR) of Fourier transform infrared (FTIR) spectroscopy.
Meer, F., van der   +11 more
core   +1 more source

An unconvincing transformation? Michelson's interferential spectroscopy [PDF]

open access: yes, 2003
Albert Abraham Michelson (1852-1931), the American optical physicist best known for his precise determination of the velocity of light and for his experiments concerning aether drift, is less often acknowledged as the creator of new spectroscopic ...
Johnston, Sean F., Johnston, S.F.
core   +4 more sources

Fourier Transform Infrared Spectroscopy Monitoring of Dihydroartemisinin-Induced Growth Inhibition in Ovarian Cancer Cells and Normal Ovarian Surface Epithelial Cells

open access: yesCancer Management and Research, 2020
Lei Li,1 Jinguang Wu,2 Shifu Weng,2 Limin Yang,3 Huizi Wang,4 Yizhuang Xu,2 Keng Shen1 1Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730 ...
Li L   +6 more
doaj  

Analysis of ovarian tumor pathology by Fourier Transform Infrared Spectroscopy

open access: yesJournal of Ovarian Research, 2010
Background Ovarian cancer is the second most common cancer among women and the leading cause of death among gynecologic malignancies. In recent years, infrared (IR) spectroscopy has gained attention as a simple and inexpensive method for the biomedical ...
Mehrotra Ranjana   +4 more
doaj   +1 more source

Reconstruction of submarine eruption processes from FTIR volatile analysis of marine tephra: Example of Oomurodashi volcano, Japan

open access: yesFrontiers in Earth Science, 2022
Tephra layers in marine sediments are widely used to correlate and date paleoclimate and paleoceanography records, and to determine spatiotemporal changes in magmatic evolution and eruption frequency.
Iona M. McIntosh   +5 more
doaj   +1 more source

Bond Characterization in Cementitious Material Binders Using Fourier-Transform Infrared Spectroscopy

open access: yesApplied Sciences, 2023
Fourier-transform infrared (FTIR) spectroscopy is a fast and simple technique for functional group identification. This work provides a review and insight into the application and interpretation of FTIR spectroscopy for cementitious binders that comprise
Moruf Olalekan Yusuf
doaj   +1 more source

Quantifying meat spoilage with an array of biochemical indicators [PDF]

open access: yes, 2010
Freshness and safety of muscle foods are generally considered as the most important parameters for the food industry. It is crucial to validate and establish new rapid methods for the accurate detection of microbial spoilage of meats.
Argyri, Anthoula A.
core   +3 more sources

Classification of gallstones using Fourier-transform infrared spectroscopy and photography

open access: yesBiomaterials Research, 2018
Background Gallstones have conventionally been classified by gross inspection into 4 categories: cholesterol gallstones, black pigment (calcium bilirubinate) gallstones, brown gallstones, and mixed gallstones that contain both cholesterol and calcium ...
Byeong Jo Ha, Sangsoo Park
doaj   +1 more source

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