A new method has been introduced based on
aerosol hygroscopic growth as a new factor for trace and ultra-trace
determination of phosphorous in flame containing optical trapping-cavity ring
down aerosol extinction (emission) spectrometer (OT-CRD-AES).
In this study, a cavity ring down has been
designed using hydrogen and air as fuel and oxidant during
introduction of the aerosols containing phosphorous species using an
ultrasonic generator (humidifier) from an acidic solution by a flow rate of N2
, followed by detection of the Mie scattering using a charged coupling device
(CCD) system.
Parameters having strong influence during following
scattering of the aerosols during their hygroscopic growth inside the
humidified flame (H2 /air), include: influence and amount of Na+ as radiation
buffer (as light source), flow rates of H2 , air and N2 , kind and
concentrations of acid, evaluation of the aerosols inside flame, etc.
