TY - JOUR
T1 - Determination of ultra low content of nitrogen in metal and slag by ion-chromatography
AU - Inoue, Ryo
AU - Kozono, Takuma
AU - Goto, Ryozo
AU - Suito, Hideaki
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1991
Y1 - 1991
N2 - Effects of HCl, Fe, Na, and K in the determination of nitrogen as NH4+ have been studied by the method of ion-chromatography. Analyzed value of nitrogen was reduced in the presence of HCl (≥ 9 × 10-5 mol) and K (≥ 2 μg) in the injected solution, while that was scarcely influenced 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 sample was determined with CV-value = 3.5% by a combination of the steam-distillation method and ion-chromatography.
AB - Effects of HCl, Fe, Na, and K in the determination of nitrogen as NH4+ have been studied by the method of ion-chromatography. Analyzed value of nitrogen was reduced in the presence of HCl (≥ 9 × 10-5 mol) and K (≥ 2 μg) in the injected solution, while that was scarcely influenced 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 sample was determined with CV-value = 3.5% by a combination of the steam-distillation method and ion-chromatography.
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U2 - 10.2320/matertrans1989.32.489
DO - 10.2320/matertrans1989.32.489
M3 - Article
AN - SCOPUS:0026153123
VL - 32
SP - 489
EP - 494
JO - Materials Transactions
JF - Materials Transactions
SN - 1345-9678
IS - 5
ER -