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Valentin
N. Oreshkin, Grigory I. Tsizin
Crucible electrothermal atomizer with channel cells
for analysis of powder samples
Abstract
Abstract. A constructive solution of a graphite crucible atomizer with
channel cells for direct atomic absorption analysis of powder samples is
proposed. The evaporation zone in the crucible is complemented by a graphite
block (container) with channel cells for placing and separating the dosed mass
of the powder sample. Thus, the conditions of thermal decomposition and
evaporation of organomineral samples have been changed, interference has been
reduced and the detection limits of elements (Ag, Bi, Cd, Tl) in concentrates
and suspensions of natural waters have been reduced.
Key words:
Key words: graphite crucible atomizer, electrothermal
atomic absorption analysis of solid samples
Copyright (C) Chemistry Dept., Moscow State University, 2002
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