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Behaviour of the calibration of a Raman spectrometer with temperature changes
Author(s) -
Mestari Abdelkader,
Gaufrès Robert,
Huguet Patrice
Publication year - 1997
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199710)28:10<785::aid-jrs148>3.0.co;2-d
Subject(s) - spectrometer , raman spectroscopy , calibration , analytical chemistry (journal) , chemistry , detector , optics , physics , chromatography , quantum mechanics
In connection with indirect Raman difference spectroscopy, a method which has been suggested for measuring Raman wavenumber shifts between two different samples with a multi‐channel spectrometer, the behaviour of the calibration of the spectrometer with temperature changes was studied. The aim of this work was to determine the experimental conditions which must be respected when using a spectral lamp as a calibration reference to take into account the possible calibration drift due to temperature changes during the recordings. The effects of temperature oscillations about a constant value and also a long‐lasting temperature change were measured for each operating mode of the dispersing system of the spectrometer. The extent to which a calibration shift due to a temperature change may be considered as constant from one end of the spectral field of the detector of the spectrometer to the other was also investigated. © 1997 John Wiley & Sons, Ltd.