Diode laser differential absorption spectrometry for measurements of some parameters of condensed media

A method of diode laser differential absorption spectrometry (DLDAS) is proposed. The method is based on the detection of absorption spectra variations caused by the changes of a parameter of a condensed media (temperature, composition of the components of a mixture, pH, etc.). Some simple theoretic...

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Bibliographic Details
Published in:Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2007-04, Vol.66 (4), p.836-845
Main Authors: Liger, V.V., Bolshov, M.A., Kuritsyn, Yu.A., Krivtsun, V.M., Zybin, A.V., Niemax, K.
Format: Article
Language:English
Subjects:
Calibration
Coloring Agents - analysis
Differential absorption
Diode laser
Lasers
Nephelometry and Turbidimetry
Robotics
Spectrum Analysis - methods
Temperature
Temperature measurements
Turbid media
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Summary:A method of diode laser differential absorption spectrometry (DLDAS) is proposed. The method is based on the detection of absorption spectra variations caused by the changes of a parameter of a condensed media (temperature, composition of the components of a mixture, pH, etc.). Some simple theoretical background of the proposed technique is presented. The potentialities of the method are demonstrated in the experiments on remote contactless measurement of the temperature of aqueous solutions and measurement of the deviations of the composition of a mixture of dyes from the equilibrium state.
ISSN:1386-1425
DOI:10.1016/j.saa.2006.11.028