Authors: R.P. Kolmykov, S.A. Sozinov, A.V. Petrushina, T.A. Mikhailik, V.I. Karvatskaya

Title of the article: Study of the possibility of alternative use of argon or helium as a carrier gas in the technology of laser sampling of ash-containing materials for use in optical emission spectrometry

Year: 2018, Issue: 6, Pages: 53-57

Branch of knowledge: Chemical technology

Index UDK: 543.053

DOI: 10.26730/1999-4125-2018-6-53-57

Abstract: Nowadays, the problem of accumulated ash and slag waste is quite acute. On the other hand, the problem of recycling including ash waste exists. To resolve these problems, it is necessary to develop some analytical techniques, which are appropriate to determine an chemical composition of an investigated material rather fast without any complications and with high accuracy. Obviously, optical emission spectrometry takes almost leading position in the field of elemental analysis and using laser ablation as a method for sample preparation allows complete analysis of the ash-forming components. Such way of sample preparation needs to be im-proved to achieve the best analytical characteristics such as precision, correctness, reproducibility. The purpose of this paper is to investigate the influence of an inert carrier gas in the sampling chamber of a laser engraver on the quality of the obtained aerosol. To achieve this task, laser sampling and scanning electron microscopy techniques were used. The GSO fly ash KATEK ZUK-1 was used as a pilot research sample.

Key words: laser ablation laser sampling ash compacting elemental analysis electronic microscopy emission spectrometry argon helium

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