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Issue 9, 2012
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Rapid characterisation and classification of automotive clear coats by attenuated total reflectance infrared spectroscopy

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Abstract

Attenuated total reflectance infrared spectroscopy was employed to characterise the clear coats from a collection of automotive paint samples representing 130 vehicles, encompassing a range of Australian and international vehicle manufacturers. Principal component analysis revealed nine distinct classes, which were associated with the country of vehicle manufacture. Further statistical analysis identified variations in the samples from Australian and Japanese vehicles, which ultimately provided information regarding the manufacturer. Linear discriminant analysis gave excellent differentiation between the classes, with 100% of the calibration and test set samples being correctly classified. This ability to rapidly provide information concerning the vehicle origin and manufacturer will facilitate the procuring of investigative leads from questioned paint samples located at crime scenes. Although presented here in an Australian context, the strategy employed is universal and by extension could be utilised in other jurisdictions if they were to generate statistically significant data sets.

Graphical abstract: Rapid characterisation and classification of automotive clear coats by attenuated total reflectance infrared spectroscopy

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Supplementary files

Article information


Submitted
24 apr 2012
Accepted
29 jun 2012
First published
03 jul 2012

Anal. Methods, 2012,4, 2687-2693
Article type
Paper

Rapid characterisation and classification of automotive clear coats by attenuated total reflectance infrared spectroscopy

M. Maric, W. van Bronswijk, S. W. Lewis and K. Pitts, Anal. Methods, 2012, 4, 2687
DOI: 10.1039/C2AY25419K

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