Raman analysis degradation

Chain Structure. The chemical composition of poly (vinyhdene chloride) has been confirmed by various techniques, including elemental analysis, x-ray diffraction analysis, degradation studies, and in, Raman, and nmr spectroscopy. The polymer chain is made up of vinyhdene chloride units added head-to-tail ... 

NIR-Raman spectroscopy has been used for a number of applications and is particularly useful for biological and biomedical uses. Fluorescence has been a limiting factor for much Raman analysis of biological samples, particularly whole-cell or whole-tissue samples. NIR excitation reduces interference from fluorescence and decreases photoinduced degradation of the sample, enabling researchers to obtain spectra for a variety of biomaterials and living cells. 

Bicchieri, M., A. Sodo, G. Piantanida, and C. Coluzza (2006), Analysis of degraded papers by non-destructive spectroscopic techniques,. Raman Sped. 37,1186-1192. 

Failloux, N, Bonnet, I, Baron, MH, and Perrier, E, 2003. Quantitative analysis of vitamin A degradation by Raman spectroscopy. Appl Spectrosc 57, 1117-1122. 

The experimental techniques described above of charge—discharge and impedance are nondestructive. Tear-down analysis or disassembly of spent cells and an examination of the various components using experimental techniques such as Raman microscopy, atomic force microscopy, NMR spectroscopy, transmission electron microscopy, XAS, and the like can be carried out on materials-spent battery electrodes to better understand the phenomena that lead to degradation during use. These techniques provide diagnostic techniques that identify materials properties and materials interactions that limit lifetime, performance, and thermal stabiity. The accelerated rate calorimeter finds use in identifying safety-related situations that lead to thermal runaway and destruction of the battery. 

Edwards, El. G. M. (2004). Forensic applications of Raman spectroscopy to the nondestructive analysis of biomaterials and their degradation, in Forensic Geoscience Principles, Techniques and Applications (K. Pye and D. J. Croft, Eds.). London Geological Society Special Publication 232,159-170. 

The tables that follow contain information on the Chemical Warfare Agents Simulants (Table 2), degradation products of actual chemical agents (Table 3) and on the Toxic Industrial Compounds (Table 4) studied. Raman Spectroscopy and Fourier Transform Infrared Spectroscopy were used for the vibrational analysis. Spectra were compared to... 

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