نتایج جستجو برای: ft ir spectroscopy

تعداد نتایج: 238798  

Journal: :Applied spectroscopy 2013
Limin Shao Wanping Wang Peter R Griffiths April B Leytem

The choice of the type of background spectrum affects the credibility of open-path Fourier transform infrared spectroscopy (OP/FT-IR) data, and consequently, the quality of data analysis. We systematically investigated several properties of the background spectrum. The results show that a short-path background measured with the lowest amplifier gain could significantly reduce noise in the calcu...

Journal: :Applied and environmental microbiology 2004
Helen E Johnson David Broadhurst Douglas B Kell Michael K Theodorou Roger J Merry Gareth W Griffith

Silage quality is typically assessed by the measurement of several individual parameters, including pH, lactic acid, acetic acid, bacterial numbers, and protein content. The objective of this study was to use a holistic metabolic fingerprinting approach, combining a high-throughput microtiter plate-based fermentation system with Fourier transform infrared (FT-IR) spectroscopy, to obtain a snaps...

FT-IR and FT-Raman spectra of hirudin have been recorded from the native solid hirudin. The conformation of the molecule has been discussed on the basis of IR and Raman data. It has been concluded that hirudin molecule has a mixed a-helix and random coil conformation.

Journal: :Lebensmittel-Wissenschaft & Technologie 2022

Cinnamon is a popular spice with lengthy overseas supply chain. C. cassia commonly traded as cinnamon, but the use of rapid methods to detect its adulteration has not yet been fully addressed. This work explores FT-IR spectroscopy for detection in cinnamon chain by several lower value ingredients. Two species (C. verum and cassia) an adulterant (cinnamon spend, n = 2) were used create 110 diffe...

2016
Laura Maiore M. Carla Aragoni Gianfranco Carcangiu Ombretta Cocco Francesco Isaia Vito Lippolis Paola Meloni Arianna Murru Alexandra M. Z. Slawin Enrica Tuveri J. Derek Woollins Massimiliano Arca

The ammonium salt of N-phenyloxamic acid (AmPhOxam) was synthesised, characterised by FT-IR, FT-Raman, UV-Vis, H-NMR spectroscopic methods and single crystal X-ray diffraction, and evaluated as a protective and consolidating agent for calcareous stone substrates under mild conditions. Hydroalcoholic solutions of AmPhOxam were tested for the treatment of naturally weathered white marble and biom...

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