Performance of a near Infrared Spectrometer Equipped with an Autosampling Accessory

Autor:	Nathalie Szydlowski-Zanier, Francois Wahl, Marc Berger, Denis Guillaume
Rok vydání:	2003
Předmět:	Absorbance Chromatography Spectrometer Chemistry Near infrared spectrometer Near-infrared spectroscopy Analytical chemistry Linearity Cetane number Spectroscopy
Zdroj:	Journal of Near Infrared Spectroscopy. 11:83-95
ISSN:	1751-6552 0967-0335
DOI:	10.1255/jnirs.357
Popis:	The performance of a Fourier-transform near infrared (FT-NIR) spectrometer equipped with an autosampling accessory (AutoSamplIR) using disposable vials with uncontrolled pathlength has been compared with the performance of an FT-NIR equipped with a manual vial sampling accessory using a reusable cell with calibrated pathlength. The effect of different parameters such as the signal-to-noise ratio, the stability of the purge and the linearity of absorbance have been evaluated by means of the NIR predictions of two physico-chemical properties of interest for gasoils, i.e the wt% of hydrogen and the cetane number (CN). It has been shown that an FT-NIR with the autosampling accessory can be used advantageously at low cost for quick and precise analyses of small amounts of sample.
Databáze:	OpenAIRE
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