Ionization of Mg and Cd in an atmospheric pressure parallel plate capacitively coupled plasma

Authors
Rahman, MM Blades, MW
Citation
Mm. Rahman et Mw. Blades, Ionization of Mg and Cd in an atmospheric pressure parallel plate capacitively coupled plasma, J ANAL ATOM, 15(10), 2000, pp. 1313-1319
Citations number
45
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
ISSN journal
02679477 → ACNP
Volume
15
Issue
10
Year of publication
2000
Pages
1313 - 1319
Database
ISI
SICI code
0267-9477(2000)15:10<1313:IOMACI>2.0.ZU;2-#
Abstract
The degree of ionization for Mg and Cd vaporized into a parallel plate capa citively coupled plasma (PP-CCP) has been studied. Using electrothermal vap orization and a CCP operating at 200 W, the degree of ionization is 83% and 48% for Mg and Cd, respectively. An increase in applied power increases th e degree of ionization. Changes in plasma gas flow rate, up to 1.0 l min(-1 ), also change the degree of ionization slightly, probably due to mass tran sport effects and slight changes in the discharge conditions. Additions of EIE (Na as NaNO3) up to 10 times (w/w) the analyte increase the degree of i onization slightly.