2023
DOI: 10.1177/00037028231190660
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A Portable Infrared Attenuated Total Reflection Spectrometer for Food Analysis

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., organ… Show more

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Cited by 5 publications
(5 citation statements)
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“…There exist portable and handheld IR systems that demonstrate the potential for analyzing various food samples. 14,58,59 However, a direct comparison with the present dry film FTIR system is difficult since measurements have been performed on different samples. Most of the available portable FTIR systems are based on the ATR method and provide rapid sample analysis.…”
Section: Resultsmentioning
confidence: 99%
“…There exist portable and handheld IR systems that demonstrate the potential for analyzing various food samples. 14,58,59 However, a direct comparison with the present dry film FTIR system is difficult since measurements have been performed on different samples. Most of the available portable FTIR systems are based on the ATR method and provide rapid sample analysis.…”
Section: Resultsmentioning
confidence: 99%
“…This produces artifacts that negatively affect the feature extraction step and, hence, the classification model. These spots can be avoided by modifying the sampling conditions, i.e., the angle of incidence of the radiation; otherwise, glare pixels need to be detected and removed before the feature extraction and classification steps [60,67]. With the extension of irradiation time with halogen lamps, the temperature increases the heating of the sample.…”
Section: Specific Problemsmentioning
confidence: 99%
“…In addition, IR spectroscopic techniques require a minimum of consumables or reagents; hence, IR-ATR spectroscopy is considered a “green” method . Recent advancements in IR photonics have even demonstrated portable hand-held analyzers and sensors …”
Section: Introductionmentioning
confidence: 99%
“…24 Recent advancements in IR photonics have even demonstrated portable hand-held analyzers and sensors. 25 The present study focused on the capabilities of IR-ATR spectroscopy for monitoring DON contamination in wheat due to the to date rather limited analysis of the commodity via this analytical technique. IR-ATR spectroscopy has already been successfully utilized for mycotoxin analysis in maize.…”
Section: Introductionmentioning
confidence: 99%
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