نتایج جستجو برای: fourier transfer infra red ft ir

تعداد نتایج: 567253  

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2009
Ionela Radu Michael Schleeger Carsten Bolwien Joachim Heberle

The introduction of time-resolved Fourier transform infrared (FT-IR) spectroscopy to biochemistry opened the possibility of monitoring the catalytic mechanism of proteins along their reaction pathways. The infrared approach is very fruitful, particularly in the application to membrane proteins where NMR and X-ray crystallography are challenged by the size and protein hydrophobicity, as well as ...

2012
Haydar Aboud H. Wagiran I. Hossain R. Hussin

Fourier transform infra red (FTIR) and energy band gap of potassium lithium borate glasses of different composition have been studied using Fourier FTIR and UV-VIS spectroscopy techniques. The glasses were melted in the alumina crucible in an electric furnace at 1100°C for 30 min until homogenous melt was obtained. The X-ray diffraction analysis was adopted for confirming the amorphous nature o...

2006
Olli Laakso Markku Paloheimo

This thesis is based on the following original articles, which will be referred to in the text by their Roman numerals. The use of low resolution FT-IR spectrometry for the analysis of alcohols in breath.IR breath test in the diagnosis and control of treatment of methanol intoxications. infrared breath testing after ingestion of technical alcohol. Journal of Forensic Sciences (Submitted for pub...

Journal: :Sustainable Environment Research 2021

Abstract The present work mainly aimed to synthesize different weight percentages (0.25–1.00 wt%) of Manganese (Mn 2+ ) and Magnesium (Mg bimetal ions doped TiO 2 nanomaterial assisted with (5–15 Gemini surfactant (GS) using sol-gel method. undoped photocatalysts were characterized by X-ray Diffraction, Scanning Electron Microscopy, Energy Dispersive Spectroscopy, Fourier Transform Infrared Spe...

2012
Sri Kumaran

Nickel and mercury are naturally occurring, highly toxic environmental pollutant. The goal of the present study was investigate the effects of nickel and mercury exposure on the biochemical contents of the muscles tissues of fish Lates calcarifer by using Fourier transform infrared (FT-IR) spectroscopy. FT-IR spectra reveal significant differences in absorbance intensities between the control. ...

2014
N. Tugrul A. S. Kipcak E. Moroydor Derun

Zinc borate is an important boron compound that can be used as multi-functional flame retardant additive due to its high dehydration temperature property. In this study, the raw materials of ZnSO4.7H2O, NaOH and H3BO3 were characterized by X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR) and used in the synthesis of zinc borates. The synthesis parameters were set to 1...

Journal: :Journal of Automated Methods and Management in Chemistry 1999
Ian Wells Paul J. Worsfold

The development and optimization of an automated flow injection (FI) manifold coupled with a Fourier transform infrared (FT-IR) detector for the determination of toluene, ethyl benzene and o-xylene in an n-hexane matrix is described. FT-IR parameters optimized were resolution and number of co-added scans; FI parameters optimized were type of pump tubing, carrier flow rate and sample volume. ATR...

Journal: :journal of nanostructures 2015
b. f. mirjalili a. bamoniri s. m. nezamalhosseini

the knoevenagel condensation of aromatic aldehydes with barbituric acid, dimedone and malononitrile occurred in the presence of bf3/nano-γ-al2o3 at room temperature in ethanol. this catalyst is characterized by powder x-ray diffraction (xrd), fourier transform infrared spectroscopy (ft-ir), thermal gravimetric analysis (tga), field emission scanning electron microscopy (fesem) and energy-disper...

1997
Pawel J. Kulesza Marcin A. Malik

Interfacial oxidation and reduction of Prussian Blue (PB), KFe[Fe(CN)6]‚nH2O (n ≈ 10), powder were probed in situ with Fourier transform infrared attenuated total reflection (FT-IR/ATR) spectroscopy. The combination of electrochemistry in the absence of liquid electrolyte with internal reflectance FT-IR spectroscopy was accomplished using a simple two-electrode sandwich-type cell in which a cry...

2007
Barry Harrison Joanne Ellis David Broadhurst Ken Reid Royston Goodacre Fergus G Priest

J. Inst. Brew. 112(4), 333–339, 2006 It is not known if peats derived from different areas of Scotland have distinctive chemical constituents that could impact on malt whisky in discernible organoleptic ways. Fourier transforminfrared (FT-IR) spectroscopy was used as a high throughput screening method to investigate discrimination of a large number of peat samples from six different geographica...

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