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| Home » Infrared Spectroscopy » Spectroscopy |
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Spectroscopy |
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When it comes to talk about Spectroscopy, it can be defined as a study which deals with the interaction between matter and radiation. While talking on radiation it can be pointed out that radiation can be of various types, such as light, electromagnetic radiation and particle radiation as well. When it deals with the measurements of these instruments and the interactions it is termed as spectrometry which is carried with a measuring apparatus called the spectrometer which is synonymous with spectrograph. Infrared spectroscopy which is also known as IR spectroscopy is only a part or a kind of spectroscopy which studies the details of the infrared region that belongs to the electromagnetic spectrum.
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Using all these techniques of Spectroscopy, compounds are identified or it is also used for investigating the composition of a sample.
Initially spectroscopy was referred to that branch of science which dealt with the visible light which was used for the theoretical study of the structural integrities of matter. It also exploited for the analysis of matter both for qualitative and quantitative research. With the advancement in this field, the scope of Spectroscopy has reached newer heights as its horizon has broadened many folds. Now Spectroscopy does not limit its research to the visible light but also deals with the study of various other types of radiation. Spectroscopy finds extensive use in analytical as well as physical chemistry. It is highly used in the identification of various substances through the spectrum emitted from or absorbed by them. It also finds application in the field of astronomy as well as in remote sensing. In most of the cases the telescopes use spectrometers. This is used in the measurement of the chemical composition as well as in finding out the physical properties of the objects of astronomical importance. It may also be required for calculating the velocities resulting from the Doppler shift.
The kind of Spectroscopy is always dependent on the measurement of the physical quantity. The measured quantity is basically the intensity of the concerned object. Electromagnetic Spectroscopy which we also know as Optical Spectroscopy deals with the matter and light interaction. One such example is that of the Ultraviolet-visible spectroscopy. Electron Spectroscopy studies the behaviors of the electron beams. Auger spectroscopy deals with the Auger effect induction using a beam of electron. Mass spectroscopy deals with the study of the interaction of the magnetic or electric fields with the charged particles which result in a mass spectrum.
Most of these methods of Spectroscopy are distinguished into the molecular or atomic forms. After the differentiation is done, the classification is made on the type of interaction. Absorption spectroscopy deals with the study of the electromagnetic spectral range which is absorbed by a substance. Emission spectroscopy deals with the emission of the electromagnetic spectra of a substance. Scattering spectroscopy is the study where amount of scattered light by a substance at several wavelengths, angles is measured. It finds a good application in the study of Raman spectroscopy. Some of the common forms of Spectroscopy are Fluorescence spectroscopy, X-ray spectroscopy, Flame Spectroscopy and Atomic Emission Spectroscopy.
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