Dissolution of molybdenum-silicon (-boron) alloys using a mixture of sulfuric, nitric and hydrofluoric acids and a sequential correction method for ICP-AES analysis

Y. Danzaki, K. Wagatsuma, T. Syoji, K. Yoshimi

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

For the major component analysis of Mo-Si (-B) alloys by ICP-AES, an appropriate dissolution method is necessary. The general procedure using a HNO3-HF mixture cannot be applied for Mo-Si (-B) alloys due to Si volatilization followed by violent reaction and due to MoO2 precipitation in the preparation of a Mo standard solution from metallic Mo. Good results were obtained with a mixture of 10 mL H2SO4, 1 mL HNO3, 2 mL HF and 12 mL H2O for Mo-Si (-B) alloys. The samples were completely dissolved at room temperature without any losses. A sequential correction method is also suggested to correct several errors in ICP-AES analysis such as fluctuation in the emission intensities, spectral interferences, non-spectral interferences and blank values.

Original languageEnglish
Pages (from-to)184-186
Number of pages3
JournalFresenius' journal of analytical chemistry
Volume369
Issue number2
DOIs
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Biochemistry

Fingerprint Dive into the research topics of 'Dissolution of molybdenum-silicon (-boron) alloys using a mixture of sulfuric, nitric and hydrofluoric acids and a sequential correction method for ICP-AES analysis'. Together they form a unique fingerprint.

Cite this