| 摘要 |
PURPOSE:To improve analyzing accuracy, when zirconium is determined by using a plasmic luminance spectro-chemical analysis method, by adding specified amounts of zinc oxide and nickel to a reference liquid for an analytical curve, and correcting the effects of Mn and Co. CONSTITUTION:The light emitting intensity of zirconium, which is a sample for an analytical curve, is measured at a wavelength of 3,438Angstrom by using a plasmic luminance spectro-chemical analysis method, and the analytical curve is obtained. The light emitting intensity of zirconium in a sample solution is measured, and the concentration of the zirconium is obtained by the analytical curve. At this time, the concentrations of hydrochloric acid, boric acid and hydrofluoric acid, which are contained in a standard liquid for the analytical curve and the sample solution, are made the same. Specified amounts of zinc oxide and nickel are added to the standard liquid for the analytical curve, and their effects are eliminated. The effects of the amounts of inclusions of Mn and Co are corrected by correcting formulas, which are prepared in advance. Boric acid is added in order to prevent the erosion of glass by hydrofluoric acid. |
