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  • Applied Spectroscopy
  • Vol. 77,
  • Issue 9,
  • pp. 1073-1086
  • (2023)

A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

Polina Fomina, Antoni Femenias, Michael Hlavatsch, Julian Scheuermann, Nicolas Schäfer, Stephan Freitag, Nageshvar Patel, Achim Kohler, Rudolf Krska, Johannes Koeth, and Boris Mizaikoff

Open Access Open Access

Abstract

The analytical performance of a compact infrared attenuated total reflection spectrometer using a pyroelectric detector array has been evaluated and compared to a conventional laboratory Fourier transform infrared system for applications in food analysis. Analytical characteristics including sensitivity, repeatability, linearity of the calibration functions, signal-to-noise ratio, and spectral resolution have been derived for both approaches. Representative analytes of relevance in food industries (i.e., organic solvents, fatty acids, and mycotoxins) have been used for the assessment of the performance of the device and to discuss the potential of this technology in food and feed analysis.

© 2023 The Author(s)

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Supplementary Material (1)

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Supplement 1       sj-docx-1-asp-10.1177_00037028231190660 - Supplemental material for A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

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