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Ecological Systems and Devices Annotation << Back
Spectral analysis in atmospheric monitoring molecular microcomponents: analytical opportunities and prospects |
Roeva N.N., Grebenkin N.N., Zaytsev D.A., Voronich S.S., Pakhomov D.E.
This article discusses the spectral methods based on the use of the phenomena of light absorption, fluorescence and resonance Raman scattering, the distinguishing feature of which is the combination of high sensitivity with selectivity, allowing to determine the concentration of an ingredient in the controlled presence of a large number of other harmful substances. It also underscores the importance of the emergence and development of lasers, thus increased the sensitivity and selectivity of absorption FH analysis methods. A special feature of this paper is a thorough analysis of the various methods of laser spectroscopy for monitoring atmospheric pollution, a review of their positive and negative characteristics, and as a conclusion – is emphasized that these methods have limitations due to the complexity and low reliability of the measurement systems themselves, as well as the lack of information about the spectra substances obtained from the high resolution (10–3 cm–1) and sensitivity (up to 10–9 cm–1).
Keywords: Monitoring; quantitative chemical analysis; spectrometry and spectroscopy; laser; atmospheric, air pollutants.
Contacts: E-mail: s-v80@mail.ru
Pp. 04-09. |
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