Methods and Systems for Multiple Charge Correction of Electrical Mobility Spectrometer Data

摘要

Systems and methods for determining particle size distribution from electrical mobility spectrometry (EMS) measurements in the presence of multiply charged particles. EMS data comprising zeroth order singly-charged particle size distribution information for one or more EMS channels is obtained and fitted using a Gumbel distribution function to obtain a fit function value. The obtained fit function value is used to correct for multiply-charged particle contribution to the received EMS data.

主权项

1. A method for determining particle size distribution from electrical mobility spectrometry (EMS) measurements in the presence of multiply charged particles, the method comprising the steps of:
receiving EMS data, wherein the received EMS data comprises a particle signal for one or more EMS channels; calculating a zeroth order singly-charged particle size distribution from the particle signals in the one or more EMS channels; fitting, using a distribution function, the calculated zeroth order singly-charged particle size distribution to obtain a fit function value; correcting, using the obtained fit function value, for multiply-charged particle contribution to the received EMS data.