Assessment of aldehyde contributions to PTR-MS <i>m</i>/<i>z</i> 69.07 in indoor air measurements
Lisa Ernle, Nijing Wang, Gabriel Bekö, Glenn Morrison, Pawel Wargocki, Charles J. Weschler, Jonathan Williams
Abstract
PTR m / z 69.07 commonly attributed to isoprene suffers interference from C 5 –C 10 aldehydes indoors, especially when ozone is present. The contribution of nonanal could be quantified by using the protonated molecular ion, unlike the other aldehydes.
Topics & Concepts
Environmental scienceAldehydeIndoor airChemistryEnvironmental chemistryOrganic chemistryEnvironmental engineeringCatalysisAdvanced Chemical Sensor TechnologiesIndoor Air Quality and Microbial ExposureAir Quality Monitoring and Forecasting