Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Stefan Weigl"'
Autor:
Jonas Pangerl, Pritam Sukul, Thomas Rück, Patricia Fuchs, Stefan Weigl, Wolfram Miekisch, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
Photoacoustics, Vol 38, Iss , Pp 100604- (2024)
In this research we present a low-cost system for breath acetone analysis based on UV-LED photoacoustic spectroscopy. We considered the end-tidal phase of exhalation, which represents the systemic concentrations of volatile organic compounds (VOCs)
Externí odkaz:
https://doaj.org/article/ca05002359f14954bede73d523db3ae8
Autor:
Jonas Pangerl, Elisabeth Moser, Max Müller, Stefan Weigl, Simon Jobst, Thomas Rück, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
Photoacoustics, Vol 30, Iss , Pp 100473- (2023)
Trace gas analysis in breath is challenging due to the vast number of different components. We present a highly sensitive quantum cascade laser based photoacoustic setup for breath analysis. Scanning the range between 8263 and 8270 nm with a spectral
Externí odkaz:
https://doaj.org/article/62f2faf0009d4b74a2a9d25fc8aeb9e9
Autor:
Max Müller, Thomas Rück, Simon Jobst, Jonas Pangerl, Stefan Weigl, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
Photoacoustics, Vol 26, Iss , Pp 100371- (2022)
Successful transfer of photoacoustic gas sensors from laboratory to real-life applications requires knowledge about potential cross-sensitivities towards environmental and gas matrix changes. Multi-dimensional calibration in case of cross-sensitiviti
Externí odkaz:
https://doaj.org/article/c7f9f012a4e442c8993892b821e7da65
Publikováno v:
Bioanalytical Reviews ISBN: 9783031185250
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62307c7154a2d9d5ea4ea27261d1ea4f
https://doi.org/10.1007/11663_2022_22
https://doi.org/10.1007/11663_2022_22
Autor:
Jonas Pangerl, Elisabeth Wittmann, Stefan Weigl, Max Müller, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES).
Photoacoustic spectra of main breath components together with acetone are presented demonstrating spectral linearity towards different concentrations and compositions. The acetone 3σ detection limit at 1209 cm − 1 is 0.28 ppbV.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::565f05bd29b93a1ae0fdf62af1b2f00c
https://doi.org/10.1364/ais.2022.atu3g.1
https://doi.org/10.1364/ais.2022.atu3g.1
Publikováno v:
Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES).
A modeling approach to create a photoacoustic spectrum from synthetic data is presented and evaluated. The resulting model reaches a MAPE score of 2.7% and can be used to enable data-driven development in future work.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baf2a3f8a4a6b7f7ccf4b89514f5dab9
https://doi.org/10.1364/ais.2022.atu3g.2
https://doi.org/10.1364/ais.2022.atu3g.2
Autor:
Thomas Rück, Max Müller, Simon Jobst, Stefan Weigl, Jonas Pangerl, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efd4b9866be8d44179cccacccab3695f
https://doi.org/10.2139/ssrn.4215170
https://doi.org/10.2139/ssrn.4215170
Autor:
Jonas Pangerl, Elisabeth Moser, Max Müller, Stefan Weigl, Simon Jobst, Thomas Rück, Rudolf Bierl, Frank-Michael Matysik
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5553528c53ee6abf2ead7ad16bc0463b
https://doi.org/10.2139/ssrn.4305376
https://doi.org/10.2139/ssrn.4305376
Autor:
Stefan Weigl
This volume highlights the potentials as well as the limits and challenges of human breath analysis and describes the current efforts made to advance this promising technology from bench to bed. Human breath analysis is a young, interdisciplinary and
Publikováno v:
Sensors and Actuators B: Chemical. 352:130962
We present a sensitive and compact interband cascade laser (ICL) based photoacoustic setup for the detection of gaseous hydrocarbons and discuss its applicability towards trace gas analysis. We investigated the performance of the sensor for trace con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c21b2b33c9942ed8131ae5c3682491f7
https://doi.org/10.1016/j.snb.2021.130962
https://doi.org/10.1016/j.snb.2021.130962