(I021)Quantitative Analysis of Vanadium, Titanium and Phosphorus Elements in Steel by laser-induced breakdown spectroscopy

摘要

In this report, the concentrations of the metal elements such as vanadium, titanium and the nonmetal elements such as phosphorus in the steel samples were quantitatively analyzed by Laser-induced breakdown spectroscopy technique. For vanadium and titanium elements, the lines of V (V I: 440.85 nm) and Ti (Ti I: 334.19 nm) were chosen as the quantitative analysis spectral lines, while spectral line of the matrix element Fe (Fe I: 438.35 nm) was chosen as the internal calibration line. The experimental results showed that, the fitting correlation coefficient (R?) of vanadium and titanium elements are 0.9952 and 0.9921 respectively by the internal calibration method, and their relative errors are lower than 4%.