Chemical State Analyses of Sulfur, Chromium and Tin by High Resolution X-Ray Spectrometry

Abstract

Abstract Chemical shifts of SKα, CrKβ 1,3 and SnLβ 2 were precisely measured with a two-crystal X-ray spectrometer (Toshiba AFV 701). Sulfur in the coke for iron smelting takes two oxidation states, i.e., S 2− and S 6+ . Quantitative analyses of S 2− and S 6+ were performed by precisely measuring the profile of SKα and fitting the standard S 2− of S 6+ curve to the observed SKα profile with the non-linear least square method. Chemical shifts of CrKβ 1,3 and SnLβ 2 were utilized for the determinations of Cr 6+ , Cr 3+ , Sn 4+ and Sn 2+ in electro-plating solutions. Intensity ratio of IA to Ig was measured, where B means the point which showed an intensity independent of oxidation states. A means the point which showed the most dependent. Linear relations were found between intensity ratio I A /I B and Cr 3+ /Cr or Sn 2+ /Sn.