NEAR MELTING-POINT FLOW-INJECTION - A DRASTIC ENHANCEMENT IN FAAS DETECTION LIMITS

Authors
WALTER S ALEBOYEH A
Citation
S. Walter et A. Aleboyeh, NEAR MELTING-POINT FLOW-INJECTION - A DRASTIC ENHANCEMENT IN FAAS DETECTION LIMITS, Fresenius' journal of analytical chemistry, 355(5-6), 1996, pp. 687-689
Citations number
3
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
355
Issue
5-6
Year of publication
1996
Pages
687 - 689
Database
ISI
SICI code
0937-0633(1996)355:5-6<687:NMF-AD>2.0.ZU;2-8
Abstract
The described technique is based on segregation phenomena taking place in solids near their melting point. High impurity concentration occur s in a liquid phase at the grain boundaries. A continuous flow of an a dequate solvent is used in far from equilibrium conditions to reach hi gh extraction efficiency of the analyte. As an example, the determinat ion of trace amounts of caesium in metallic sodium is described. The 5 mg/kg detection limit of conventional FAAS is thus lowered to a few m u g/kg.