Application of quaternary acid mixture to microwave digestion effective for various kinds of steel samples

Kenichi Nakayama, Kazuaki Wagatsuma

研究成果: Review article査読

抄録

This paper suggests a procedure of an improved digestion method, which can be applied to a variety of steel samples, for preparing the sample solution to quantify alloyed elements and sulfur simultaneously in inductively coupled plasma atomic emission spectrometry. A conventional digestion method using a mixture of hydrochloric and nitric acid has a poor ability to decompose tool steel completely. Alternatively, a microwave digestion method, in which an acid mixture of hydrochloric acid, hydrofluoric acid, nitric acid, and phosphoric acid was prepared with 1:1:1:1 volume ratio, enabled various steel samples including tool steel and stainless steel to be fully decomposed. Due to no addition of sulfuric acid, the sulfur content in the samples could be determined. The suggested procedure was applicable to determine sulfur, vanadium, chromium, manganese, cobalt, nickel, molybdenum, and tungsten in a variety of steel alloys using the same dissolution procedure.

本文言語English
ページ(範囲)193-195
ページ数3
ジャーナルIsij International
60
1
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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