Capabilities of femtosecond laser ablation ICP-MS for the major, minor, and trace element analysis of high alloyed steels and super alloys.

摘要: Femtosecond laser ablation inductively coupled plasma mass spectrometry was used for the quantification of 23 metallurgical relevant elements in unalloyed, alloyed and highly steels, super alloys. It shown that by using scanning mode with large spot diameters (250 μm), stable representative sampling can be achieved majority elements, except bismuth lead. For Bi Pb up to 46%, temporal relative standard deviation (TRSD) encountered, whereas most other TRSDs were below 10%. Calibration matrix-matched non-matrix-matched standards provided similar agreement within uncertainty certified values. However, standard-based more influenced interferences rather than ablation- or excitation-related matrix effects. The method validated 34 reference materials. 52Cr, 51V, 55Mn as internal due fact Fe concentration not determined concentrations major minor indicate total standardization (100 wt.%) is applicable, which requires no knowledge about steel samples prior analysis.