Determination of ultra low content of nitrogen in metal and slag by ion-chromatography

Ryo Inoue, Takuma Kozono, Ryozo Goto, Hideaki Suito

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The effects of HCl, Fe, Na and K in the determination of nitrogen as NH4+ have been studied by the method of ion chromatography. The analyzed value of nitrogen was reduced in the presence of HCl (> 9 × 10-5 mol) and K (≥2 μg) in the injected solution, while it was hardly affected by 120 μg of Fe or 30 μg of Na. In the analysis of ultra-low content of nitrogen in steel or slag, 1 mass ppm of nitrogen in the sample was determined with a CV-value = 3.5% by a combination of the steam-distillation method and ion chromatography.

Original languageEnglish
Pages (from-to)304-309
Number of pages6
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume55
Issue number3
DOIs
Publication statusPublished - 1991

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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