نتایج جستجو برای: ftir spectroscopy

تعداد نتایج: 181847  

Journal: :Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2004
He Hongping Frost L Ray Zhu Jianxi

In this paper, FTIR spectroscopy using attenuated total reflection (ATR) and KBr pressed disk techniques has been used to characterize sorbed water and HDTMA+ in organo-clay. Sorbed water content decreases with the intercalation of HDTMA+. With the decrease of the sorbed water content, the position of the nu2 mode shifts to higher frequency dramatically while the stretching vibration shifts to ...

Journal: :iranian journal of pharmaceutical sciences 0
maryam nakhjavani department of toxico/pharmacology, school of pharmacy, shahidbeheshti medical university, tehran, iran. nastaran nikounezhad department of toxico/pharmacology, school of pharmacy, shahidbeheshti medical university, tehran, iran. farshad h. shirazi department of toxico/pharmacology, school of pharmacy, shahidbeheshti medical university, tehran, iran. pharmaceutical sciences research center, shahidbeheshti medical university, tehran, iran.

researchers have found a big interest in biological application of fourier transform infrared (ftir) spectroscopy. evaluating many diseases, staging them and studying the chemical structures of different formed compounds in diseases are some of the research applications of ftir. cancer is also one of these diseases. researchers are trying to set up ftir methods to detect and diagnose cancer cel...

Journal: :Biochimica et Biophysica Acta (BBA) - Biomembranes 1996

Journal: :Zbornik radova 2021

The need to increase the productivity and capacity of power transformers has conditioned production insulating papers a higher thermal class. For this purpose, various techniques solid insulation modification were applied, which enable in chemical stability paper during operation transformer. applied additives, primarily dicyandiamide (DICY) polyacrylamide (PAM), are one form cellulose final st...

Journal: : 2022

115 samples of honey various botanical types, geographical origin and harvest year (2019– 2021) were analysed using attenuated total reflection infrared spectroscopy impaired reflection, refractometry biochemical analysis. Initial in liquid crystallised states investigated. Crystalline D-glucopyranose (glucose), D-fructopyranose (fructose), their 40% solutions invert sugar used as auxiliary sub...

M. Nadafan R. Malekfar Z. Dehghani

In this research the composition of polyurethane closed cell (PUCC) with two different concentrations of SiO2 nanoparticles (1.0 and 2.0 wt%) have been prepared. Optical microscopy and SEM imaging, watering uptake, FTIR and Raman spectroscopy of the synthesized samples were carried out. The optical microscopy imaging of samples showed differences in the appearance of matrix produ...

2012
A. A. El hadad D. Carbonell V. Barranco A.Jiménez-Morales B Casal A. Jiménez-Morales B. Casal J. C. Galván

Organic-inorganic hybrid materials suitable for the development of sol-gel coatingsfor metallic surfaces were prepared by hydrolysis and condensation of γ-methacryloxypropyltrimethoxysilane (MAPTMS) and tetramethylorthosilicate (TMOS). The hydrolysis of MAPTMS/TMOS was carried out in an ethanol/water solution. The prehydrolysis stage of MAPTMS/TMOS system was monitored by Fourier Transformer In...

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