Αποτελέσματα Αναζήτησης
I. Introduction to spectroscopy What does it mean to characterize a compound? What are some examples of when you would need to do this? What are some physical properties of organic compounds, and how can they be used in characterization? How are chemical tests used to characterize organic compounds? What does spectroscopy use to characterize a ...
Principles of FTIR Spectroscopy. In FTIR analyses, Infrared light from the light source passes through a Michelson interferometer along the optical path. The Michelson interferometer comprises a beam splitter, moving mirror, and fixed mirror.
Liquids, solutions, pastes, powders, films, fibres, gases and surfaces can all be examined with a judicious choice of sampling technique. As a consequence of the improved instrumentation, a variety of new sensitive techniques have now been developed in order to examine formerly intractable samples.
25 Απρ 2012 · The first part of the chapter outlines an orderly procedure for the initial interpretation of an unknown infrared radiation (IR) spectrum by regions.
The Fundamentals of Infrared Spectroscopy. Joe Van Gompel, PhD. The Principles of Infrared Spectroscopy. Spectroscopy is the study of the interaction of electromagnetic radiation with matter. The electromagnetic radiation may be anywhere from very high energy gamma rays to low-frequency radio waves.
Fourier transform infrared spectroscopy is preferred over dispersive or filter methods of infrared spectral analysis for several reasons: • It is a non-destructive technique. • It provides a precise measurement method which requires no external calibration. • It can increase speed, collecting a scan every second. to ratio o.
IR spectroscopy takes advantage of light energy in the infrared region of the electromagnetic spectrum. When an organic molecule is irradiated with IR light, the light energy is absorbed if the frequency of light is equal to the vibrational energy associated with a particular bond in a molecule.
