نتایج جستجو برای: spectroscopy fourier transform infrared

تعداد نتایج: 360719  

Journal: :Bulletin of the Chemical Society of Japan 1982

Journal: :Optics continuum 2023

We demonstrate a 13-fold speed improvement in broadband cantilever-enhanced photoacoustic spectroscopy (CEPAS) by combining it with phase-controlled Fourier-transform (PC-FTS) instead of traditional infrared (FTIR). PC-FTS is modification FTIR and capable fundamentally faster interferogram acquisitions. The speed-improvement beneficial for CEPAS, which an especially sensitive version the backgr...

2009
Marek W. Urban

This chapter covers the fundamental principles and current applications of Fourier transform (FT) infrared and Fourier transform Raman spectroscopies as utilized in the analysis of polymeric materials. The primary emphasis of the first part is on the principles and advantages of these interferometric methods, whereas the remaining sections illustrate numerous applications focusing on the struct...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

in this paper functionalized multiwall carbon nanotubes (fmwcnt) were modified using doxycycline, containing reactable nitrogen, which can attach chemically to functionalized mwcnt. the synthesized nano compounds were characterized by fourier transform infrared spectroscopy (ft-ir) and raman spectroscopy. these spectrums proved the existence of nitrogen atoms of amide functional groups. the mor...

Journal: :the iranian journal of pharmaceutical research 0
venkateskumar krishnamoorthy department of pharmaceutics, kmch college of pharmacy, coimbatore, india arunkumar nagalingam department of pharmaceutics, kmch college of pharmacy, coimbatore, india verma priya ranjan prasad department of pharmaceutical sciences, bits, ranchi, india siva parameshwaran neema george punitha kaliyan department of pharmaceutics, kmch college of pharmacy, coimbatore, india

aim: to enhance the aqueous solubility of olanzapine by using the solid dispersion technique. solid dispersions of olanzapine were prepared by the dispersion method using using pgs and ssg as carriers. drug:carrier ratios such as 1:1, 1:2, 1:4, 1:6, 1:8 and 1:10 were tried for optimization. characterization was done by phase solubility, in vitro release, saturation solubility, permeation, wetta...

Journal: :journal of nanostructures 2012
m. dadkhah m. salavati-niasari n. mir

caco3 nanoparticles have been synthesized via heat-treatment of a new precursor and solid state reaction. effect of calcinations temperature and quantity of surfactant on particle size has been investigated. the products were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem) and fourier transform infrared (ft–ir) spectroscopy.

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