Infrared and Raman Spectroscopy: Principles and Spectral InterpretationInfrared and Raman Spectroscopy: Principles and Spectral Interpretation explains the background, core principles and tests the readers understanding of the important techniques of Infrared and Raman Spectroscopy. These techniques are used by chemists, environmental scientists, forensic scientists etc to identify unknown chemicals. In the case of an organic chemist these tools are part of an armory of techniques that enable them to conclusively prove what compound they have made, which is essential for those being used in medical applications. The book reviews basic principles, instrumentation, sampling methods, quantitative analysis, origin of group frequencies and qualitative interpretation using generalized Infrared (IR) and Raman spectra. An extensive use of graphics is used to describe the basic principles of vibrational spectroscopy and the origins of group frequencies, with over 100 fully interpreted FT-IR and FT-Raman spectra included and indexed to the relevant qualitative interpretation chapter. A final chapter with forty four unknown spectra and with a corresponding answer key is included to test the readers understanding. Tables of frequencies (peaks) for both infrared and Raman spectra are provided at key points in the book and will act as a useful reference resource for those involve interpreting spectra. This book provides a solid introduction to vibrational spectroscopy with an emphasis placed upon developing critical interpretation skills. Ideal for those using and analyzing IR and Raman spectra in their laboratories as well as those using the techniques in the field.
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10À6 that of the incident light for strong Raman scattering. ... The intensity ratio of the Stokes relative to the anti-Stokes Raman bands is governed by the absolute temperature of the sample, and the energy difference between the ...
Thus, the resulting interferogram in FT-IR and FT-Raman spectra have a very strong center-burst and rapidly damped intensity in the wings of the interferogram. It is necessary to precisely know the optical path differences in the ...
Lastly, confirm from the IR spectrum that all of the solvent has evaporated leaving only the material of interest. ... spectra due to non-uniform sample thickness are characterized by broadening of the bandshape of the strong bands and ...
In general, low intensity bands will be increased relative to intense bands and the strong intensity bands will have broader, rounder peak shapes. A KubelkaeMunk conversion available in most FT-IR software packages can compensate for ...
between the measured quantity (such as infrared absorbance or the Raman intensity) and the analyte concentration. ... When strong isolated bands are available, this can be extended to lower concentrations (~0.1%). IR spectroscopy can be ...
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Table des matières
1 | |
7 | |
27 | |
Chapter 4 Environmental Dependence of Vibrational Spectra | 55 |
Chapter 5 Origin of Group Frequencies | 63 |
Characteristic Group Frequencies | 73 |
Chapter 7 General Outline and Strategies for IR and Raman Spectral Interpretation | 117 |
Chapter 8 Illustrated IR and Raman Spectra Demonstrating Important Functional Groups | 135 |
Chapter 9 Unknown IR and Raman Spectra | 177 |
Appendix IR Correlation Charts | 213 |
Index | 217 |
Autres éditions - Tout afficher
Infrared and Raman Spectroscopy: Principles and Spectral Interpretation Peter Larkin Aucun aperçu disponible - 2017 |
Infrared and Raman Spectroscopy: Principles and Spectral Interpretation Peter J. Larkin Aucun aperçu disponible - 2011 |