INQUISAL   20936
INSTITUTO DE QUIMICA DE SAN LUIS "DR. ROBERTO ANTONIO OLSINA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Vapor Generation of Scandium Associated to Inductively Coupled Plasma Optical Emission Spectrometry
Autor/es:
S. CERUTTI, L.A. ESCUDERO, J.A. GASQUEZ, R.A. OLSINA, L.D. MARTINEZ
Lugar:
Mar del Plata, Buenos Aires
Reunión:
Simposio; Eleventh Rio Symposium on Atomic Spectrometry; 2010
Resumen:
Generation
of volatile derivatives represents an important step in many analytical methods
and protocols for determination and speciation of trace elements1, 2.
The vapor generation approaches have expanded in scope in recent years in
response to the reports of the successful generation of a number of
unconventional volatile species1-5.To the best of our knowledge, this
work reports on the first generation of a volatile species of scandium
resulting from the merging of an acidified sample stream with sodium
tetrahydroborate reductant. The gaseous analyte was subsequently introduced via
Ar carrier into the torch of an inductively coupled plasma optical emission
spectrometer (ICP-OES). The aim of this study was to undertake a multivariate
(2-level full factorial design) optimization of the variables influencing both
physical and vapor generation aspects in an effort to illustrate its analytical
utility in an application to the determination of scandium in a Certified
Reference Material.