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Moscow University Chemistry Bulletin

, Volume 74, Issue 3, pp 111–115 | Cite as

Crucible Atomizers Open Up New Opportunities for the Atomic Absorption Analysis of Trace Elements in Solid Samples with the Use of Fractional Evaporation

  • V. N. Oreshkin
  • G. I. TsisinEmail author
Article
  • 3 Downloads

Abstract

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 (high-temperature 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.

Keywords:

electrothermal atomic absorption analysis crucible atomizers fractional evaporation 

Notes

FUNDING

G. Tsisin thanks the Russian Foundation for Basic Research (project no. 18-03-00289-a) for supporting the element preconcentration study with the use of the DETATA sorbent.

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Copyright information

© Allerton Press, Inc. 2019

Authors and Affiliations

  1. 1.Pushchino Research Center for Biological Studies, Institute of Basic Biological Problems, Russian Academy of SciencesPushchinoRussia
  2. 2.Department of Analytical Chemistry, Moscow State UniversityMoscowRussia
  3. 3.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of SciencesMoscowRussia

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