XRFS Determination of Silicon,Manganese,Phosphorus,Chromium,Nickel and Copper in Ferromanganese with Sample Preparation by Fusion

XRFS was applied to the determination of silicon,manganese,phosphorus,chromium,nickel and copper in ferromanganese.Using Li2B4O7 as flux,the sample was first heated at 300 ℃ for 15 min,and then the temperature was gradually raised to 1 100 ℃,where the sample was fused for 15 min.After cooling,the glassy melt obtained was used directly as sample for XRFS analysis.Linear relationships between values of signal intensity and mass fraction of the 6 elements were kept in definite ranges.Detection limits found were ranged from 15 to 59 μg·g-1.The proposed method was applied to the analysis of substantial ferromanganese sample,giving values of RSD′s (n=11) in the ranges of 0.16%-3.6%.