Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Olavi Vaittinen"'
Autor:
Olavi Vaittinen, Stefan Persijn, Markus Metsälä, Daiana Leuenberger, Lauri Halonen, Bernhard Niederhauser
The effect of moisture on the adsorption of ammonia was systematically studied using different surface materials and humidity levels. The experimental water amount fractions varied between 6 and 18,000 mu molmol(-1), and the ammonia amount fraction w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd4a1c099ba167706e0d3b2e5afa7f5e
http://hdl.handle.net/10138/307288
http://hdl.handle.net/10138/307288
Publikováno v:
Vaittinen, O, Metsälä, M, Persijn, S, Vainio, M & Halonen, L 2014, ' Adsorption of ammonia on treated stainless steel and polymer surfaces ', Applied Physics B: Lasers and Optics, vol. 115, no. 2, pp. 185-196 . https://doi.org/10.1007/s00340-013-5590-3
Adsorption of dynamically diluted ammonia at part-per-billion to low part-per-million concentrations in dry nitrogen was studied with treated and non-treated stainless steel and polymer test tubes. The treatments included electropolishing and two typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::638fd4cc38d4463255e591d26afba1b7
https://doi.org/10.1007/s00340-013-5590-3
https://doi.org/10.1007/s00340-013-5590-3
Publikováno v:
University of Helsinki
Biological monitoring usually relies on the collection of blood and urine samples. Although being non-invasive and providing an inextinguishable sampling pool, the analysis of exhaled breath is not ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::feabacb417f98f58f21ab4e24a385260
https://doi.org/10.2174/1573411011309030016
https://doi.org/10.2174/1573411011309030016
Autor:
Daiana Leuenberger, Andrea Pogány, Nicholas A. Martin, Bernhard Niederhauser, Valerio Ferracci, Volker Ebert, Carlo Tiebe, David Balslev-Harder, Janneke van Wijk, Marsailidh Twigg, Klaus Wirtz, Stefan Persijn, Christine F. Braban, Olavi Vaittinen, Tuomas Hieta, Nathan Cassidy, Céline Pascale, Jari Peltola
Publikováno v:
Pogány, A, Balslev-Harder, D, Braban, C F, Cassidy, N, Ebert, V, Ferracci, V, Hieta, T, Leuenberger, D, Martin, N A, Pascale, C, Peltola, J, Persijn, S, Tiebe, C, Twigg, M M, Vaittinen, O, Van Wijk, J, Wirtz, K & Niederhauser, B 2016, ' A metrological approach to improve accuracy and reliability of ammonia measurements in ambient air ', Measurement Science and Technology, vol. 27, no. 11, 115012 . https://doi.org/10.1088/0957-0233/27/11/115012
The environmental impacts of ammonia (NH3) in ambient air have become more evident in the recent decades, leading to intensifying research in this field. A number of novel analytical techniques and monitoring instruments have been developed, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa0ebadb9a7d056f56e6c1ca7eae43f4
Publikováno v:
Molecular Physics. 105:807-813
In this article we present the spectrum of H13C13CH near 13 000 cm−1 and its ro-vibrational analysis. Our high repetition rate cavity ringdown spectrometer was used to record the spectrum. Seven vibrational bands, including six to previously unobse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ca266f79c06b8d03df59d6865869830
https://doi.org/10.1080/00268970601129068
https://doi.org/10.1080/00268970601129068
Publikováno v:
Chemical Physics Letters. 424:7-11
This article describes the measurement and rotational analysis of several overtone vibrational bands of H 13 C 13 CH in the region between 12 100 cm −1 and 12 265 cm −1 using cavity ringdown spectroscopy. The recorded spectra contain three perpen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::363a447d2e63b633ebfafd3efce82d2f
https://doi.org/10.1016/j.cplett.2006.04.010
https://doi.org/10.1016/j.cplett.2006.04.010
Publikováno v:
Journal of Molecular Spectroscopy. 236:16-20
A high resolution vibration–rotation spectrum of deuterated monobromoacetylene (DCCBr) has been recorded with a Bruker IFS 120 Fourier Spectrometer in the wavenumber region 1700–2800 cm −1 , which covers the C–D and C C stretching fundamental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35180aa62574021905fb8f0b17afeced
https://doi.org/10.1016/j.jms.2005.12.003
https://doi.org/10.1016/j.jms.2005.12.003
Autor:
Shengfu Yang, Piritta Suero, Markus Metsälä, Tommi Lantta, R. Z. Martínez, Olavi Vaittinen, Lauri Halonen
Publikováno v:
Chemical Physics Letters. 396:213-218
Fourier-transform intra-cavity laser absorption spectroscopy has been used to record high-resolution vibration–rotation overtone spectra of carbon-13 substituted acetylenes, H 12 C 13 CH and H 13 C 13 CH, in the third CH stretching overtone region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4071591f843a109a8d458f3a17405e7
https://doi.org/10.1016/j.cplett.2004.08.034
https://doi.org/10.1016/j.cplett.2004.08.034
Autor:
Volker Ebert, Nathan Cassidy, Tuomas Hieta, Carlo Tiebe, Céline Pascale, Olavi Vaittinen, Valerio Ferracci, Janneke van Wijk, Marsailidh Twigg, Klaus Wirtz, Bernhard Niederhauser, Daiana Leuenberger, Nicholas A. Martin, Christine F. Braban, Nils Lüttschwager, Andrea Pogány, David Balslev-Harder
Publikováno v:
Pogány, A, Balslev-Harder, D, Braban, C F, Cassidy, N, Ebert, V, Ferracci, V, Hieta, T, Leuenberger, D, Lüttschwager, N, Martin, N A, Pascale, C, Tiebe, C, Twigg, M M, Vaittinen, O, Van Wijk, J, Wirtz, K & Niederhauser, B 2015, Metrology for ammonia in ambient air : concept and first results of the EMRP project MetNH3 . in 17th International Congress of Metrology : Environnement et climat / Environment and climate ., 07003, EDP Sciences, 17th International Congress of Metrology, CIM 2015, Paris, France, 21/09/15 . https://doi.org/10.1051/metrology/20150007003
Dans le cadre du Programme de Recherche Europeen en Metrologie (EMRP), un projet de trois ans a debute en juin 2014 avec l’objectif d’ameliorer la comprehension et la tracabilite metrologique des mesures d’ammoniac (NH3) ambient, dans le domain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4dc4d36cd040cccca18e3839305292f
https://cris.vtt.fi/en/publications/676aefd7-012d-48e5-b1f3-f43f772df56f
https://cris.vtt.fi/en/publications/676aefd7-012d-48e5-b1f3-f43f772df56f
Publikováno v:
The Journal of Chemical Physics. 117:8686-8693
The laser-induced dispersed vibration–rotation fluorescence method has been developed further when compared with a previous publication [Saarinen et al., J. Chem. Phys. 110, 1424 (1999)]. More than one order of magnitude better signal-to-noise rati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecd840054ca305a949f83b3af1bbb925
https://doi.org/10.1063/1.1513464
https://doi.org/10.1063/1.1513464