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Inorganic Materials

, Volume 54, Issue 14, pp 1392–1396 | Cite as

Analysis of Siliceous Refractories by Inductively Coupled Plasma Atomic Emission Spectroscopy in Combination with Microwave Sample Preparation

  • E. V. YakubenkoEmail author
  • O. V. Tolmachyeva
  • I. I. Chernikova
  • T. N. Ermolaeva
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Abstract

In this paper, we developed a methodology for the determination of Al2O3, SiO2, CaO, and Fe2O3 in siliceous refractories by using inductively coupled plasma atomic emission spectroscopy (ICP-AES) with microwave sample preparation in an autoclave. We proposed the composition of the acid mixture and the stepwise microwave heating regime that ensure the completeness of sample dissolution and exclude the decompression of the autoclave leading to the loss of analytes in the form of volatile compounds. Cd was anticipated to be used as an internal standard. Calibrated dependences for the determination of normalized macro- and microelements in terms of oxides by ICP-AES were obtained using the method of three standards. The correctness of the developed methodology was confirmed by the analysis of state standard samples and comparison with the results of the Al2O3, SiO2, CaO, and Fe2O3 determination in accordance with GOST. The developed technique makes it possible to reduce both the time required for the analysis by 11 times and the consumption of concentrated acids by 8 times.

Keywords:

siliceous (dinas) refractories microwave sample preparation inductively coupled plasma atomic emission spectrometry 
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Notes

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • E. V. Yakubenko
    • 1
    • 2
    Email author
  • O. V. Tolmachyeva
    • 2
  • I. I. Chernikova
    • 1
    • 2
  • T. N. Ermolaeva
    • 1
  1. 1.Lipetsk State Technical UniversityLipetskRussia
  2. 2.PJSC NovolipetskLipetskRussia

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