Review in terahertz spectral analysis

► We discuss the advantages of using chemometrics in terahertz spectroscopy. ► We demonstrate the complementary nature of information from terahertz spectroscopy. ► Chemometrics is key to terahertz spectroscopy being a reliable analytical technique. Nowadays terahertz spectroscopy is a well-establis...

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Bibliographic Details
Published in:TrAC, Trends in analytical chemistry (Regular ed.) Trends in analytical chemistry (Regular ed.), 2013-03, Vol.44, p.98-105
Main Authors: El Haddad, Josette, Bousquet, Bruno, Canioni, Lionel, Mounaix, Patrick
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemical Sciences
Chemometrics
Data selection
Far infrared
image analysis
industrial applications
infrared spectroscopy
Multi-linear regression (MLR)
Multivariate calibration
Pre-processing
quality control
Spectral analysis
Spectroscopy
Terahertz (THz)
Vibrational spectroscopy
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Summary:► We discuss the advantages of using chemometrics in terahertz spectroscopy. ► We demonstrate the complementary nature of information from terahertz spectroscopy. ► Chemometrics is key to terahertz spectroscopy being a reliable analytical technique. Nowadays terahertz spectroscopy is a well-established technique and recent progresses in technology demonstrated that this new technique is useful for both fundamental research and industrial applications. Varieties of applications such as imaging, non destructive testing, quality control are about to be transferred to industry supported by permanent improvements from basic research. Since chemometrics is today routinely applied to IR spectroscopy, we discuss in this paper the advantages of using chemometrics in the framework of terahertz spectroscopy. Different analytical procedures are illustrates. We conclude that advanced data processing is the key point to validate routine terahertz spectroscopy as a new reliable analytical technique.
ISSN:0165-9936
1879-3142
0165-9936
DOI:10.1016/j.trac.2012.11.009