<div class="csl-bib-body">
<div class="csl-entry">Hinkov, B., Dabrowska, A., David, M., Schwaighofer, A., Freitag, S., Andrews, A. M., Strasser, G., & Lendl, B. (2023). Broadband mid-infrared milk protein analysis based on quantum cascade technology. In Razeghi Manijeh, Khodaparast Giti A., & Vitiello Miriam S. (Eds.), <i>Quantum Sensing and Nano Electronics and Photonics XIX</i>. SPIE. https://doi.org/10.1117/12.2650801</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/187445
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dc.description.abstract
Mid-infrared chemical sensors based on quantum cascade (QC) devices offer improved sensitivity, portability and costs compared to FTIR-based spectrometers. In this work, we combine for the first time a broadband external-cavity QC laser (EC-QCL) with a spectrally tailored QC detector (QCD) for broadband detection of bovine milk proteins including β-lactoglobulin, α-lactalbumin and casein. We analyze concentrations between 0.25-15 g/L in a 12.5-µm transmission flow cell in the amide-I and -II band (~1730-1470 cm-1) and obtain: a RMS noise-level of 0.067 mAU, a limit-of-detection of ~0.09 g/L, excellent agreement with FTIR absorbance-spectra and similar performance as much more bulky high-end FTIR-spectrometers.
en
dc.language.iso
en
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dc.relation.ispartofseries
Proceedings / SPIE, International Society for Optical Engineering : P
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dc.subject
broadband
en
dc.subject
mid-infrared
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dc.subject
milk protein analysis
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dc.subject
quantum cascade
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dc.title
Broadband mid-infrared milk protein analysis based on quantum cascade technology
en
dc.type
Inproceedings
en
dc.type
Konferenzbeitrag
de
dc.relation.issn
0361-0748
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dc.type.category
Full-Paper Contribution
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tuw.booktitle
Quantum Sensing and Nano Electronics and Photonics XIX
