A {real|genuine|actual|true} time trace gas detector for benzene is demonstrated. The measurement systemtakes an {advantage|benefit} of modest enrichment {through|via|by means of|by way of} {short|brief|quick} adsorption periods to {reach|attain} appt-level detection limit {with a|having a|using a} sampling cycle of 90 s, which {includes|consists of|contains|involves|incorporates} sample adsorption,desorption {and a|along with a|as well as a|plus a|and also a|in addition to a} spectroscopic measurement. Benzene is collected on Tenax TA sorbentfor 30 s {and then|and after that|after which|then} detected {from the|in the} enriched samples with photoacoustic spectroscopy. Ahigh sensitivity is {achieved|accomplished} {using|utilizing|making use of|employing|working with|applying} cantilever-enhanced photoacoustic spectroscopy and acontinuous-wave quantum cascade laser emitting {at the|in the} wavelength 14.{8|eight} μm, which correspondsto the absorption wavelength {of the|from the|in the|on the|with the|of your} strongest benzene infrared band. We {reach|attain} adetection limit of 150 ppt of benzene, {over|more than} {one|1|a single|one particular} sampling cycle. Interference from humidityand other {common|typical|frequent|widespread|prevalent|popular} petrochemicals is evaluated. Formula of 5-Benzylthio-1H-tetrazole 4506-66-5 custom synthesis PMID:23771862
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