Sample pre-treatment of blast furnace slag by glass bead preparation for ICP-AES analysis

Kenichi Nakayama, Kazuaki Wagatsuma

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper suggests a preparation procedure for the analysis of blast furnace slag, based on an idea of glass bead sample preparation for X-ray fluorescence (XRF) analysis, to determine all major constituents, including silicon at the same time, by using inductively coupled plasma-atomic emission spectrometry (ICP-AES). Differing from a conventional alkaline-fusion method, the slag sample was first fused with lithium tetraborate to prepare it in a glass bead specimen for XRF, and then a sample solution could be obtained without any loss of the silicic constituents by dissolving the glass bead with nitric acid and then adding hydrofluoric acid. The contents of Na, MgO, Al 2 O 3 , SiO 2 , P, K, CaO, TiO 2 , MnO, and total Fe in a slag sample could be simultaneously determined, while an additional procedure for separation of silicon from the other analytes was needed in a conventional ICP-AES. The suggested method would enable several kinds of blast furnace slag to be analyzed through easier sample preparation procedure.

Original languageEnglish
Pages (from-to)673-679
Number of pages7
JournalBUNSEKI KAGAKU
Volume67
Issue number11
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Glass bead
  • Inductively coupled plasma atomic emission spectrometry
  • Lithium tetraborate
  • Sample preparation
  • Silicic material

ASJC Scopus subject areas

  • Analytical Chemistry

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