Crucible Atomizers Open Up New Opportunities for the Atomic Absorption Analysis of Trace Elements in Solid Samples with the Use of Fractional Evaporationстатья
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Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 сентября 2019 г.
Аннотация:The atomic absorption analysis of trace elements in natural solid samples with the use of an
improved crucible atomizer with several condensation/evaporation zones is shown to be advantageous. A new
approach to fractional preconcentration is proposed, including two stages of thermal decomposition (hightemperature and low-temperature) of solid sample components when elements are evaporated and their
vapors are condensed in heated and unheated zones. This approach facilitates the efficient suppression of
non-selective interferences and matrix effects. It also improves the metrological characteristics of the element analysis of samples of complex composition.