Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

Juho Karhu; Tuomas Hieta

doi:10.1364/AO.450407

Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

Juho Karhu^*, Tuomas Hieta

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

4 Sitaatiot (Scopus)

Abstrakti

A real-time trace gas detector for benzene is demonstrated. The measurement system takes advantage of modest enrichment through short adsorption periods to reach a ppt-level detection limit with a sampling cycle of 90 s, which includes sample adsorption, desorption, and a spectroscopic measurement. Benzene is collected on Tenax TA sorbent for 30 s and then detected from the enriched samples with photoacoustic spectroscopy. High sensitivity is achieved using cantilever-enhanced photoacoustic spectroscopy and a continuous-wave quantum cascade laser emitting at 14.8 mu m wavelength, which corresponds to the absorption wavelength of the strongest benzene infrared band. We reach a detection limit of 150 ppt of benzene, over one sampling cycle. Interference from humidity and other common petrochemicals is evaluated. (C) 2022 Optica Publishing Group

Alkuperäiskieli	Englanti
Sivut	1892-1897
Sivumäärä	6
Julkaisu	Applied Optics
Vuosikerta	61
Numero	8
DOI - pysyväislinkit	https://doi.org/10.1364/AO.450407
Tila	Julkaistu - 10 maalisk. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1364/AO.450407

https://arxiv.org/abs/2202.08598

Muut tiedostot ja linkit

Linkki julkaisuun Scopuksessa

PREIN: Fotoniikan Tutkimus ja Innovaatio
Mäkelä, K. (Vastuullinen tutkija)
01/01/2019 → 31/12/2022
Projekti: Academy of Finland: Other research funding

Siteeraa tätä

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title = "Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection",

abstract = "A real-time trace gas detector for benzene is demonstrated. The measurement system takes advantage of modest enrichment through short adsorption periods to reach a ppt-level detection limit with a sampling cycle of 90 s, which includes sample adsorption, desorption, and a spectroscopic measurement. Benzene is collected on Tenax TA sorbent for 30 s and then detected from the enriched samples with photoacoustic spectroscopy. High sensitivity is achieved using cantilever-enhanced photoacoustic spectroscopy and a continuous-wave quantum cascade laser emitting at 14.8 mu m wavelength, which corresponds to the absorption wavelength of the strongest benzene infrared band. We reach a detection limit of 150 ppt of benzene, over one sampling cycle. Interference from humidity and other common petrochemicals is evaluated. (C) 2022 Optica Publishing Group",

author = "Juho Karhu and Tuomas Hieta",

note = "Funding Information: Acknowledgment. The authors thank Matti Jussila and Kari Hartonen for useful discussion and assistance in assembling the sorbent tube, and Markus Mets{\"a}l{\"a} for assistance with the mass spectrometer measurements. The authors thank Roland Teissier, Alexei Baranov, and Hadrien Phillip for providing the QCL used in this work. This work was supported by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167. Publisher Copyright: {\textcopyright} 2022 Optica Publishing Group.",

year = "2022",

month = mar,

day = "10",

doi = "10.1364/AO.450407",

language = "English",

volume = "61",

pages = "1892--1897",

journal = "Applied Optics",

issn = "1559-128X",

publisher = "Optical Society of America (OSA)",

number = "8",

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TY - JOUR

T1 - Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

AU - Karhu, Juho

AU - Hieta, Tuomas

N1 - Funding Information: Acknowledgment. The authors thank Matti Jussila and Kari Hartonen for useful discussion and assistance in assembling the sorbent tube, and Markus Metsälä for assistance with the mass spectrometer measurements. The authors thank Roland Teissier, Alexei Baranov, and Hadrien Phillip for providing the QCL used in this work. This work was supported by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167. Publisher Copyright: © 2022 Optica Publishing Group.

PY - 2022/3/10

Y1 - 2022/3/10

N2 - A real-time trace gas detector for benzene is demonstrated. The measurement system takes advantage of modest enrichment through short adsorption periods to reach a ppt-level detection limit with a sampling cycle of 90 s, which includes sample adsorption, desorption, and a spectroscopic measurement. Benzene is collected on Tenax TA sorbent for 30 s and then detected from the enriched samples with photoacoustic spectroscopy. High sensitivity is achieved using cantilever-enhanced photoacoustic spectroscopy and a continuous-wave quantum cascade laser emitting at 14.8 mu m wavelength, which corresponds to the absorption wavelength of the strongest benzene infrared band. We reach a detection limit of 150 ppt of benzene, over one sampling cycle. Interference from humidity and other common petrochemicals is evaluated. (C) 2022 Optica Publishing Group

AB - A real-time trace gas detector for benzene is demonstrated. The measurement system takes advantage of modest enrichment through short adsorption periods to reach a ppt-level detection limit with a sampling cycle of 90 s, which includes sample adsorption, desorption, and a spectroscopic measurement. Benzene is collected on Tenax TA sorbent for 30 s and then detected from the enriched samples with photoacoustic spectroscopy. High sensitivity is achieved using cantilever-enhanced photoacoustic spectroscopy and a continuous-wave quantum cascade laser emitting at 14.8 mu m wavelength, which corresponds to the absorption wavelength of the strongest benzene infrared band. We reach a detection limit of 150 ppt of benzene, over one sampling cycle. Interference from humidity and other common petrochemicals is evaluated. (C) 2022 Optica Publishing Group

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U2 - 10.1364/AO.450407

DO - 10.1364/AO.450407

M3 - Article

AN - SCOPUS:85126121042

SN - 1559-128X

VL - 61

SP - 1892

EP - 1897

JO - Applied Optics

JF - Applied Optics

IS - 8

ER -

Enhancement of photoacoustic spectroscopy with sorption enrichment for ppt-level benzene detection

Abstrakti

Pääsy asiakirjaan

Muut tiedostot ja linkit

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Projektit

PREIN: Fotoniikan Tutkimus ja Innovaatio

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