نتایج جستجو برای: infrared ft

تعداد نتایج: 121267  

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

in this work, we report on the synthesis of superparamagnetic iron oxide nanoparticles at room temperature using microemulsion template phase consisting of cyclohexane, water, ctab as cationic surfactant and butanol as a cosurfactant. surface modification have been carried out by using poly(ethyleneglycol) (peg). the structure,morphology, and magnetic properties of the products were characteriz...

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

in this work needle like hydroxy apatite were synthesized in a reverse microemulsion droplets of water in cyclohexane, separated by a cationic surfactant and co-surfactant, in the presence of na-polyacrylate (paa) as an anionic polyelectrolyte. characterization of the as formed hap nanoparticles at the room temperature were carried out by x-ray diffraction (xrd) and fourier transform infrared s...

2010
P Nallasamy

The Fourier transform Raman (FT-Raman) and infrared absorption (FTIR) spectra of form II poly(vinylidene fluoride) have been recorded and analysed. A complete spectral analysis, assignments to observed bands, normal coordinate analysis and discussion of the spectra are presented. The computed spectrum is in excellent agreement with experiment. The potential energy distribution (PED) is evaluate...

2008
HAMZAH M. AL-QADIRI NIVIN I. AL-ALAMI MENGSHI LIN MURAD AL-HOLY ANNA G. CAVINATO BARBARA A. RASCO

This study examined the potential of Fourier transform infrared (FT-IR) absorbance spectroscopy to detect biochemical changes in bacterial cells that occur during bacterial growth phases in batch culture. Two bacterial strains, Escherichia coli ATCC 25922 and Listeria innocua ATCC 51742 were cultured in brain heart infusion (BHI) broth and incubated at 37C and cells recovered Corresponding auth...

Journal: :International Journal of Systematic and Evolutionary Microbiology 2002

2016
Xiaoli Li Yuying Zhang Yong He

This paper investigated the feasibility of Fourier transform infrared transmission (FT-IR) spectroscopy to detect talcum powder illegally added in tea based on chemometric methods. Firstly, 210 samples of tea powder with 13 dose levels of talcum powder were prepared for FT-IR spectra acquirement. In order to highlight the slight variations in FT-IR spectra, smoothing, normalize and standard nor...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2017
Swapnil Singh Harshita Singh T Karthick Poonam Tandon Dattatraya H Dethe Rohan D Erande

In the present work, structural and spectroscopic investigations were carried out on a borreverine derivative. Borreverine is a class of alkaloid as well a natural antimalarial drug extracted from Borreria verticillata. With the aim of finding possible conformers, a detailed conformational analysis of a borreverine derivative was conducted utilizing density functional theory employing the B3LYP...

2015
T. P. Wrobel K. M. Marzec S. Chlopicki E. Maślak A. Jasztal M. Franczyk-Żarów I. Czyżyńska-Cichoń T. Moszkowski R. B. Kostogrys M. Baranska

Low Carbohydrate High Protein (LCHP) diet displays pro-atherogenic effects, however, the exact mechanisms involved are still unclear. Here, with the use of vibrational imaging, such as Fourier transform infrared (FT-IR) and Raman (RS) spectroscopies, we characterize biochemical content of plaques in Brachiocephalic Arteries (BCA) from ApoE/LDLR(-/-) mice fed LCHP diet as compared to control, re...

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