CPC Counting efficiency measurements with mobility standards in the 1-4nm range generated by a bipolar electrospray source

  • Sophia Brilke (Speaker)
  • Julian Resch (Contributor)
  • Gerhard Steiner (Contributor)
  • Markus Leiminger (Contributor)
  • Winkler, P. (Contributor)

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Description

Molecular mobility standards generated by electrospray sources are commonly used for calibration measurements of ultrafine condensation particle counters
(CPC) in the sub-2 nm size range (Jiang, 2011). This technique has been limited to the smallest singly charged clusters. Fernández de la Mora et al. (2017)
developed a bipolar electrospray source of singly charged salt clusters which extends the size range to 1 – 4 nm. In this study, we characterize low cut-off CPCs using mobility standards from the bipolar electrospray source from SEADM S.L. using different test substances (Ude and Fernández de la Mora, 2005).
Furthermore, we report characterization measurements of the bipolar electrospray source using an Atmospheric Pressure interface Time-Of-Flight mass spectrometer (ioniAPi-TOF) from Ionicon Analytik GmbH, Austria, in the positive ion mode.
Period29 Aug 2019
Event titleEuropean Aerosol Conference 2019
Event typeConference
LocationGöteborg, SwedenShow on map