dc.contributor.author | Kari, Eetu | |
dc.contributor.author | Miettinen, Pasi | |
dc.contributor.author | Yli-Pirilä, Pasi | |
dc.contributor.author | Virtanen, Annele | |
dc.contributor.author | Faiola, Celia L | |
dc.date.accessioned | 2018-05-21T10:47:22Z | |
dc.date.available | 2018-05-21T10:47:22Z | |
dc.date.issued | 2018 | |
dc.identifier.uri | https://erepo.uef.fi/handle/123456789/6635 | |
dc.description.abstract | Quantitative proton-transfer-reaction mass spectrometer (PTR-MS) measurements of ambient volatile organic compounds (VOCs) require proper calibration procedures. In particular, compound product ion distribution and humidity-dependent responses must be characterized. In this study, we generated twelve gas-phase terpenoid standards using a dynamic dilution system to calibrate the PTR-MS with time-of-flight mass spectrometer (PTR-ToF-MS): six monoterpenes, two monoterpene derivatives, and four sesquiterpenes. The humidity-dependent response was characterized for three terpenoid compounds to compare different molecular structures: α-pinene, δ-limonene, and longifolene. We provide the first comprehensive summary of PTR-ToF-MS product ion distributions for twelve common biogenic volatile organic compounds using two different reduced electric field (E/N) values, 80 Td and 130 Td. Results demonstrated that neglecting to correct for individual product ion distributions of different terpenoid isomers can result in an error of up to 26% for reported mixing ratios. δ-Limonene and longifolene exhibited a small humidity-dependent response in the PTR-ToF-MS, but this did not contribute significantly to the overall measurement error. These results will improve quantification of commonly-measured biogenic volatile organic compound emissions and chemistry in the atmosphere. | |
dc.language.iso | englanti | |
dc.publisher | Elsevier BV | |
dc.relation.ispartofseries | International Journal of Mass Spectrometry | |
dc.relation.uri | http://dx.doi.org/10.1016/j.ijms.2018.05.003 | |
dc.rights | CC BY-NC-ND 4.0 | |
dc.subject | PTR-ToF-MS | |
dc.subject | Product ion distribution | |
dc.subject | Monoterpene | |
dc.subject | Sesquiterpene | |
dc.subject | Humidity-dependence | |
dc.subject | BVOC | |
dc.title | PTR-ToF-MS product ion distributions and humidity-dependence of biogenic volatile organic compounds | |
dc.description.version | published version | |
dc.contributor.department | Department of Applied Physics, activities | |
dc.contributor.department | Ympäristö- ja biotieteiden laitos / Toiminta | |
uef.solecris.id | 54541971 | en |
dc.type.publication | Tieteelliset aikakauslehtiartikkelit | |
dc.relation.doi | 10.1016/j.ijms.2018.05.003 | |
dc.description.reviewstatus | peerReviewed | |
dc.format.pagerange | 87-97 | |
dc.relation.issn | 1387-3806 | |
dc.relation.volume | 430 | |
dc.rights.accesslevel | openAccess | |
dc.type.okm | A1 | |
uef.solecris.openaccess | Hybridijulkaisukanavassa ilmestynyt avoin julkaisu | |
dc.rights.copyright | © Authors | |
dc.type.displayType | article | en |
dc.type.displayType | artikkeli | fi |
dc.rights.url | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |