Publisher DOI: 10.1016/j.talanta.2019.05.092
Title: Determination of trace amounts with ATR FTIR spectroscopy and chemometrics: 5-(hydroxymethyl)furfural in honey
Language: English
Authors: Stöbener, Anne-Kathrin Christine 
Naefken, Uta 
Kleber, Joscha 
Liese, Andreas  
Issue Date: 1-Nov-2019
Source: Talanta (204): 1-5 (2019-11-01)
Journal or Series Name: Talanta 
Abstract (english): The feasibility of Attenuated Total Reflectance Fourier Transform Infrared (ATR FTIR)spectroscopy and chemometric modeling for analysis of trace compounds is studied on the example of 5-(hydroxymethyl)furfural (HMF)in honey up to a concentration of 110 ppm, and compared to results in literature. Randomized repeated measurements of the calibration samples were carried out to prevent analytical artifacts. A partial least squares (PLS)model was calculated for quantitative determination. The considered spectral range has significant influence on the PLS model. Furthermore, averaging of spectra can improve the model quality due to the elimination of statistical noise. A low root mean square error of prediction (RMSEP)of 13 ppm was achieved. Hence, the results indicate that trace compound determination with ATR FTIR spectroscopy is possible, although calibration and modeling efforts are higher compared to standard applications of ATR FTIR spectroscopy and chemometrics.
ISSN: 0039-9140
Institute: Technische Biokatalyse V-6 
Type: (wissenschaftlicher) Artikel
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