Infrared spectroscopy FTIR-microscopy

TLC remains one of the most widely used techniques for a simple and rapid qualitative separation. The combination of TLC with spectroscopic detection techniques, such as FTIR or nuclear magnetic resonance (NMR), is a very attractive approach to analyze polymer additives. Infrared microscopy is a powerful technique that combines the imaging capabUities of optical microscopy with the chemical analysis abilities of infrared spectroscopy. FTIR microscopy allows obtaining of infrared spectra from microsized samples. Offline TLC-FTIR microscopy was used to analyze a variety of commercial antioxidants and light stabilizers. Transferring operation and identification procedure by FTIR takes about 20 min. However, the main drawbacks of TLC-FTIR are that TLC is a time-consuming technique and usually needs solvent mixtures, which makes TLC environmentally unsound, analytes must be transferred for FTIR analysis, and TLC-FTIR cannot be used for quantifying purposes. 

This is a nonpolar rubber with very little unsamration. Nanoclays as well as nanotubes have been used to prepare nanocomposites of ethylene-propylene-diene monomer (EPDM) rubber. The work mostly covers the preparation and characterization of these nanocomposites. Different processing conditions, morphology, and mechanical properties have been smdied [61-64]. Acharya et al. [61] have prepared and characterized the EPDM-based organo-nanoclay composites by X-ray diffracto-gram (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy... 

In the present study, we synthesized in zeolite cavities Co-Mo binary sulfide clusters by using Co and Mo carbonyls and characterized the clusters by extended X-ray absorption fine structure (EXAFS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and high resolution electron microscopy (HREM). The mechanism of catalytic synergy generation in HDS is discussed. 

The 11 nm-sized Ti02 were crystallized using either hydrothermal or thermal methods from 100 nm, amorphous gel spheres. The Ti02 crystal and agglomerate sizes were determined by X-ray diffraction (Philip 1080) and transmission electron microscopy (JEOL JEM 2010), respectively. The surface area and chemistry of the nanostructured Ti02 were analyzed by nitrogen physisorption (Coulter SA 3100) and Fourier transform infrared spectroscopy (FTIR, Perkin-Elmer GX 2000). Metal catalyst was deposited by incipient... 

The characterization of graphene often involves several techniques in conjunction in order to build up a complete picture of the material. The techniques typically include electron microscopy, Raman spectroscopy, X-ray photo-emission spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR) and thermal-gravimetric analysis (TGA). 

Various surface analytical tools have been utilized to investigate the surface and bulk properties of the SAMs, such as X-ray photoelectron spectroscopy (XPS),22 Fourier transform infrared spectroscopy (FTIR),23 Raman spectroscopy,24 scanning probe microscopy (SPM),25 etc. 

Spectroscopic investigations of the speciation of solid phases encountered as trapped particulate material in lichen biomass. Particular emphasis should be placed on understanding the dissolution of trapped particles and the precipitation of secondary solid phases on or within the thallus and their relationship with organic phases in the lichen. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS) in parallel with microscopy studies would be particularly useful in such investigations. 

The samples were characterized by means of X-ray diffraction (XRD) analysis, Fourier-transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), electron diffraction (ED), and Mossbauer spectroscopy. XRD analysis was carried out on a HZG-4A diffractometer by using Ni-filtered Co Ka radiation. IR-spectra were recorded on an AVATAR FTIR-330 spectrometer. TEM/ED examinations were performed with a LEO 906E and a JEOL 4000 EX transmission electron microscopes. The resonance spectra were recorded in air at 298 K and processed by using a commercial SM2201 MSssbauer spectrometer equipped with a 15 mCi Co (Rh) source. 

Various means and methodologies have been used to investigate the physicochemical properties of synthetic, semisynthetic, and natural glycolipids, e. g., NMR spectroscopy. X-ray diffraction, electron microscopy, or Fourier-transformed infrared spectroscopy (FTIR). In the following paragraphs, the occurence and physicochemical properties of different biological glycolipid classes and of lipopolysaccharides, lipoteichoic acids, and mycobacterial mycolates are briefly discussed. 

Fourier transform infrared spectroscopy (FTIR) ASTM E1421 Elongation tests Scanning electronic microscopy (SEM) Differential scanning calorimetry (DSC) ASTM D3417 Scanning acoustic microscopy (SAM)... 

The catalytic materials were studied with Fourier transform infrared spectroscopy (FTIR), electron scanning microscopy (SEM), energy-dispersive analysis of x-rays (EDAX), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), the differential scanning calorimetry (DSC), elemental analysis (EA) and surface area determination (BET). 

A variety of other techniques has been used to examine the structure of proteins at surfaces, including electron microscopy (50,51), ellipsometry (52), electrophoretic mobility (53), and total internal reflection fluorescence (TIRF) (54). Several new techniques are being applied at present, including Fourier transform infrared spectroscopy (FTIR) and TIRF (see next section),... 

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