DOI: 10.1039/d3ea00055a ISSN: 2634-3606

Assessment of aldehyde contributions to PTR-MS m/z 69.07 in indoor air measurements

Lisa Ernle, Nijing Wang, Gabriel Bekö, Glenn Morrison, Pawel Wargocki, Charles J. Weschler, Jonathan Williams
  • Pollution
  • Environmental Chemistry
  • Chemistry (miscellaneous)
  • Analytical Chemistry

PTR m/z 69.07 commonly attributed to isoprene suffers interference from C5–C10 aldehydes indoors, especially when ozone is present. The contribution of nonanal could be quantified by using the protonated molecular ion, unlike the other aldehydes.

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