title: Trace characterization of powders by atomic-absorption spectrometry: the state of the art.
abstract: A review is made of the progress achieved in the last 15 years in the field of trace characterization of powders by direct atomic-absorption spectrometry. The studies covered include the development of novel atomization devices, modification of existing atomic-absorption spectrometers, and the use of closed-cavity vaporizers. A description is given of the capsule-in-flame and circular-cavity furnace type atomizers designed on this principle, of the procedure employed in powder-sample analysis and of some analytical features of the methods used. In conclusion, various modern analytical methods are compared as to the possibilities they offer for the determination of ultratraces in solids, and suggestions are made concerning the possible role of atomic-absorption spectrometry.
authors.affiliation: Department of Analytical Chemistry, Polytechnieal Institute, Leningrad, U.S.S.R.
authors.forename: B V
authors.initials: BV
authors.lastname: L'vov