Richard Dawson died on June 2nd, 2012.
Particle mass analyser is a measurement technique for classifying aerosol particles according to their mass-to-charge ratio .. aerosol. aerosol. Techniques exist for classifying -LRB- selecting -RRB- aerosol particles in the sub 1,000 nm range according to electrical mobility using devices such as differential mobility analysers .. aerosol. aerosol. electrical mobility. electrical mobility