Sub-Second, Sensitive and Multispecies Detection of Volatile Organic Compounds Using a Mid-Infrared Broadband Supercontinuum Source and Upconversion Spectrometer.

Yueyu Lin, Paola Formica, Roderik Krebbers, Amir Khodabakhsh, Simona M Cristescu

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Article in Applied spectroscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Yueyu LinTrace Detection Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.ORCID 0000-0001-9139-7506

Paola FormicaTrace Detection Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.

Roderik KrebbersTrace Detection Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.ORCID 0000-0001-8016-3309

Amir KhodabakhshTrace Detection Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.

Simona M CristescuTrace Detection Laboratory, Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.

Funding

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6 · The paper itself

Abstract

Reliable monitoring and analysis of volatile organic compounds (VOCs) are crucial for environmental monitoring and human health. In this work, we report a system for fast, sensitive, and multispecies detection of VOCs by combining a fiber-based broadband mid-infrared (MIR) supercontinuum (SC) source with an upconversion spectrometer. The system's performance in terms of species identification accuracy, robustness against inter-species interference and real-time multi-species detection capability was evaluated by monitoring and tracing the evaporation dynamics of three VOCs, i.e., acetone, ethanol, and α-pinene. We achieved detection limits of 30 parts per million per meter (ppm·m), 5 ppm·m, and 0.6 ppm·ּּm in 1 second for these three compounds, respectively. Furthermore, the evaporation behavior of individual compounds from a mixture was investigated to demonstrate the system's capability for dynamic multicomponent analysis.

Indexed as

mid-infraredMIR supercontinuum sourcemultispecies gas detectionupconversion spectroscopyVOCsVolatile organic compounds

Identifiers

PMID42080833

DOI10.1177/00037028261446656

PMCPMC13530361

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