Spectroscopy mapping

Figure 3 - Secondary electron image and EDX spectroscopy map showing the presence of elemental gold...

Evolution of NIR Imaging Instrumentation 8.3.1 Spatially resolved spectroscopy - mapping... 

Hohng, S., Zhou, R., Nahas, M. K., Yu, J., Schulten, K., Lilley, D. M.J., andHa, T. (2007). Fluorescence-force spectroscopy maps two-dimensional reaction landscape of the Holliday junction. Science 318, 279—283. 

Mueller, G.A., Smith, A.M., Chapman, M.D., Rule, G.S., and Benjamin, D.C. 2001. Hydrogen exchange nuclear magnetic resonance spectroscopy mapping of antibody epitopes on the house dust mite allergen Derp 2. J Biol Chem 276(12) 9359-9365. 

Journal of Vinyl and Additive Technology 5, No.2, June 1999, p.81-6 FOURIER TRANSFORM INFRARED MICRO SPECTROSCOPY MAPPING STUDIES OF WEATHERED PVC CAPSTOCK TYPE FORMULATIONS. II. OUTDOOR WEATHERING IN PENNSYLVANIA Garcia D Black J... 

Journal of Vinyl and Additive Technology 3,No.3, Sept. 1997, p.200-4 FOURIER TRANSFORM INFRARED MICRO SPECTROSCOPY MAPPING. APPLICATIONS TO THE VINYL SIDING INDUSTRY Garcia D Black J Elf Atochem NA... 

The EDX analysis showed the elemental composition on the surface of the nanobiocomposites. Figure 7.10 shows the energy dispersive X-ray spectroscopy mapping image and spectrum of the fractured PP/KE (10 mm)/clay nanobiocomposites. The... 

Figure 7.10 Energy dispersive X-ray spectroscopy mapping image of the fractured surfaces of nanobiocomposites.I. Na. Sim et al.

In absorption spectroscopy, the attenuation of light as it passes tln-ough a sample is measured as a function of wavelength. The attenuation is due to rovibrational or electronic transitions occurring in the sample. Mapping out the attenuation versus photon frequency gives a description of the molecule or molecules responsible for the absorption. The attenuation at a particular frequency follows the Beer-Lambert law,... 

As in Auger spectroscopy, SIMS can be used to make concentration depth profiles and, by rastering the ion beam over the surface, to make chemical maps of certain elements. More recently, SIMS has become very popular in the characterization of polymer surfaces [14,15 and 16]. 

Van der Waals complexes can be observed spectroscopically by a variety of different teclmiques, including microwave, infrared and ultraviolet/visible spectroscopy. Their existence is perhaps the simplest and most direct demonstration that there are attractive forces between stable molecules. Indeed the spectroscopic properties of Van der Waals complexes provide one of the most detailed sources of infonnation available on intennolecular forces, especially in the region around the potential minimum. The measured rotational constants of Van der Waals complexes provide infonnation on intennolecular distances and orientations, and the frequencies of bending and stretching vibrations provide infonnation on how easily the complex can be distorted from its equilibrium confonnation. In favourable cases, the whole of the potential well can be mapped out from spectroscopic data. 

Most infrared spectroscopy of complexes is carried out in tire mid-infrared, which is tire region in which tire monomers usually absorb infrared radiation. Van der Waals complexes can absorb mid-infrared radiation eitlier witli or without simultaneous excitation of intennolecular bending and stretching vibrations. The mid-infrared bands tliat contain tire most infonnation about intennolecular forces are combination bands, in which tire intennolecular vibrations are excited. Such spectra map out tire vibrational and rotational energy levels associated witli monomers in excited vibrational states and, tluis, provide infonnation on interaction potentials involving excited monomers, which may be slightly different from Arose for ground-state molecules. 

Fig. 4. Scanning electron micrograph of 5-p.m diameter Zn powder. Neck formation from localized melting is caused by high-velocity interparticle coUisions. Similar micrographs and elemental composition maps (by Auger electron spectroscopy) of mixed metal coUisions have also been made.

For DTB films obtained by CVT inhomogenous distribution of out-of-framework cations and admixture capture ai e obseiwed. The aim of the present work is to use imaging X-ray photoelectron spectroscopy (i-XPS) for chemical state mapping which enable future optimization of the CVT technology. The P, O and Hg content in the DTB may be varied during the CVT. 

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