نتایج جستجو برای: infrared ft

تعداد نتایج: 121267  

Journal: :Applied and environmental microbiology 2009
Andrea Elisabeth Kuhm Daniel Suter Richard Felleisen Jörg Rau

Yersinia enterocolitica and other Yersinia species, such as Y. pseudotuberculosis, Y. bercovieri, and Y. intermedia, were differentiated using Fourier transform infrared spectroscopy (FT-IR) combined with artificial neural network analysis. A set of well defined Yersinia strains from Switzerland and Germany was used to create a method for FT-IR-based differentiation of Yersinia isolates at the ...

2016
Thejaswini Halethimmanahally Chandrashekaraiah Robert Bogdanowicz Eckart Rühl Vladimir Danilov Jürgen Meichsner Steffen Thierbach Rainer Hippler

Plasma polymerized a-C:H thin films have been deposited on Si (100) and aluminum coated glass substrates by a dielectric barrier discharge (DBD) operated at medium pressure using C₂Hm/Ar (m = 2, 4, 6) gas mixtures. The deposited films were characterized by Fourier transform infrared reflection absorption spectroscopy (FT-IRRAS), Raman spectroscopy, and ellipsometry. FT-IRRAS revealed the presen...

2015
Chengfeng Zhou Wei Jiang Qingzheng Cheng Brian K. Via

This research addressed a rapid method to monitor hardwood chemical composition by applying Fourier transform infrared (FT-IR) spectroscopy, with particular interest in model performance for interpretation and prediction. Partial least squares (PLS) and principal components regression (PCR) were chosen as the primary models for comparison. Standard laboratory chemistry methods were employed on ...

2004
E. Gazi N. P. Lockyer J. C. Vickerman P. Gardner J. Dwyer C. A. Hart M. D. Brown N. W. Clarke J. Miyan

Imaging ToF-SIMS and synchrotron-based Fourier transform infrared (SR-FT-IR) microspectroscopy have been used to obtain chemical information from individual cells derived from human prostate cancer (CaP). ToF-SIMS imaging of molecular signals characteristic of membrane bound phospholipids are used to elucidate different fracture planes within individual freezefractured CaP cells. The localisati...

2008
E K Girija

Incidence of urinary calculi and its composition have been showing a remarkable global variation with profound changes in living standards and dietary habits. Indian urinary stone composition is usually different from that of the western countries. Urinary calculi in northern India were composed of pure calcium oxalate monohydrate (COM) and pure calcium oxalate dihydrate (COD) and in Bihar were...

Journal: :Acta of bioengineering and biomechanics 2009
Agnieszka Sobczak Zygmunt Kowalski Zbigniew Wzorek

This paper presents the method of obtaining hydroxyapatite from animal bones. Bone sludge and calcined products were characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Calcium concentration was determined with titration, and phosphorus--spectrophotometrically. Making use of the AAS and ICP methods the content of mi...

2015
Natalia Smirnova Tatiana Fesenko Maxim Zhukovsky Jacek Goworek Anna Eremenko

TiO2 films prepared by template-assisted sol-gel method were characterized by X-ray diffraction spectroscopy, scanning and atomic force electron microscopy, and Fourier transform infrared (FT-IR) spectroscopy. Based on the hexane adsorption-desorption analysis, the films have a surface area of 390-540 m(2)/g with pore size distribution narrowly centered around 10 nm. Optimal component ratio and...

Journal: :Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 2010
V Arjunan I Saravanan P Ravindran S Mohan

The Fourier transform infrared (FTIR) and FT-Raman spectra of 4-methyl-1,3-dioxolan-2-one and 4,5-dichloro-1,3-dioxolan-2-one have been recorded in the range 3700-400 and 3700-100 cm(-1), respectively. The complete vibrational assignment and analysis of the fundamental modes of the compounds were carried out using the observed FTIR and FT-Raman data. The vibrational frequencies determined exper...

2013
Changming Zhang Zhanggen Huang Shijie Guo Yaqin Hou

The aim of this paper is to know the compositions in unknown medicinal-lotion and to evolution its applications. Through a variety of studies, an analysis method was established. This method mainly is that samples were first extracted and pre-treated by concentration of compositions, and then they were separated and qualitatively analyzed by multiple-instruments. These instruments involve Mass ...

Journal: :Analytical biochemistry 2005
Feride Severcan Guvenc Gorgulu Sevgi Turker Gorgulu Tulin Guray

Increased oxidative stress is the consequence of either enhanced reactive oxygen species (ROS) production or attenuated ROS scavenging capacity, resulting in tissue damage that in most instances is assessed by the measurement of lipid peroxides. In the current study, diabetes-induced lipid peroxidation in rat liver microsomal membranes was investigated by Fourier transform infrared (FT-IR) spec...

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