Record Display for the EPA National Library Catalog


Main Title Solution Nebulization of Aqueous Samples into the Tubular-Electrode Torch Capacitatively-Coupled Microwave Plasma (Journal Version).
Author Patel, B. M. ; Deavor, J. P. ; Winefordner, J. D. ;
CORP Author Florida Univ., Gainesville. Dept. of Chemistry.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher c1988
Year Published 1988
Report Number EPA-R-813017; EPA/600/J-88/227;
Stock Number PB89-144588
Additional Subjects Spectrochemical analysis ; Atomizing ; Emission spectroscopy ; Feasibility ; Reprints ; Capacitatively coupled microwave plasma ; Aqueous solutions ; Argon plasma ; Helium plasma ; Nitrogen plasma ; Atomization
Library Call Number Additional Info Location Last
NTIS  PB89-144588 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
The work shows the feasibility of using nebulization for introduction of aqueous samples into the tubular-torch capacitatively-coupled microwave plasma (CMP). Previously, solid electrodes were used with this type of plasma, in which analyte carrier and plasma support gases are premixed and swept around the electrode tip. With the new design, the analyte carrier gas passes through the center of the hollow tubular electrode and mixes with the plasma support gas at the tip of the electrode where the plasma is formed. Sample solutions are nebulized with a Meinhard nebulizer and laboratory-constructed spray chamber and desolvation system. The tubular torch is made of tantalum. Plasma gases investigated include argon, helium and nitrogen. Typical operating powers are 300-350 W. Elements studied include Ag, Al, Ba, Ca, Cd, Cr, Cs, Cu, K, Li, Na, Pb, Sr and Zn. (Copyright (c) 1988 Pergamon Press plc.)