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Micro milled microfluidic photoionization detector for volatile organic compounds

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dc.contributor.author Rezende, Gustavo Coelho
dc.contributor.author Le Calvé, Stéphane
dc.contributor.author Brandner, Jürgen J.
dc.contributor.author Newport, David
dc.date.accessioned 2019-05-02T10:42:54Z
dc.date.available 2019-05-02T10:42:54Z
dc.date.issued 2019
dc.identifier.uri http://hdl.handle.net/10344/7804
dc.description peer-reviewed en_US
dc.description.abstract Government regulations and environmental conditions are pushing the development of improved miniaturized gas analyzers for volatile organic compounds. One of the many detectors used for gas analysis is the photoionization detector (PID). This paper presents the design and characterization of a microfluidic photoionization detector (or PID) fabricated using micro milling and electrical discharge machining techniques. This device has no glue and facilitates easy replacement of components. Two materials and fabrication techniques are proposed to produce a layer on the electrodes to protect from ultraviolet (UV) light and possible signal noise generation. Three different microchannels are tested experimentally and their results are compared. The channel with highest electrode area (31.17 mm2) and higher volume (6.47 L) produces the highest raw signal and the corresponding estimated detection limit is 0.6 ppm for toluene without any amplification unit en_US
dc.language.iso eng en_US
dc.publisher MDPI en_US
dc.relation MIGRATE en_US
dc.relation.ispartofseries Micromachines;10 228
dc.subject photoionization detector en_US
dc.subject microfluidics en_US
dc.subject microfabrication en_US
dc.subject volatile organic compound (VOC) detection en_US
dc.subject toluene en_US
dc.title Micro milled microfluidic photoionization detector for volatile organic compounds en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.3390/mi10040228
dc.contributor.sponsor ERC en_US
dc.relation.projectid 643095 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 2905383


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