By Barbara H. Stuart
Offers an creation to these wanting to take advantage of infrared spectroscopy for the 1st time, explaining the basic points of this method, how you can receive a spectrum and the way to examine infrared info overlaying quite a lot of functions.
- Includes instrumental and sampling techniques
- Covers organic and business applications
- Includes compatible questions and difficulties in each one bankruptcy to aid within the research and interpretation of consultant infrared spectra
Part of the ANTS (Analytical ideas within the Sciences) Series.
Read Online or Download Infrared Spectroscopy: Fundamentals and Applications (Analytical Techniques in the Sciences) PDF
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Additional info for Infrared Spectroscopy: Fundamentals and Applications (Analytical Techniques in the Sciences)
In selecting a solvent for a sample, the following factors need to be considered: it has to dissolve the compound, it should be as non-polar as possible to minimize solute–solvent interactions, and it should not strongly absorb infrared radiation. If quantitative analysis of a sample is required, it is necessary to use a cell of known pathlength. 3. e. alkali halide discs, mulls and ﬁlms. The choice of method depends very much on the nature of the sample to be examined. The use of alkali halide discs involves mixing a solid sample with a dry alkali halide powder.
6. Barrow, G. , Introduction to Molecular Spectroscopy, McGraw-Hill, New York, 1962. 7. Hollas, J. , Modern Spectroscopy, 3rd Edn, Wiley, Chichester, UK, 1996. Chapter 2 Experimental Methods Learning Objectives • To understand how an infrared spectrum is obtained from a Fouriertransform instrument. • To recognize the different methods of sample preparation and sample handling techniques which are used for preparing samples in infrared spectroscopy. • To recognize poor quality spectra and diagnose their causes.
If the far-infrared region is to be examined, then a high-pressure mercury lamp can be used. For the near-infrared, tungsten–halogen lamps are used as sources. There are two commonly used detectors employed for the mid-infrared region. The normal detector for routine use is a pyroelectric device incorporating deuterium tryglycine sulfate (DTGS) in a temperature-resistant alkali halide window. 5 Interferograms obtained for (a) monochromatic radiation and (b) polychromatic radiation. Reproduced with permission from Barnes, A.
Infrared Spectroscopy: Fundamentals and Applications (Analytical Techniques in the Sciences) by Barbara H. Stuart