Abstract
In this study, we present results regarding the application of a relatively simple bench-top laser-induced breakdown spectroscopic (LIBS) technique working in the UV/visible spectral region for the rapid, direct and sensitive quantification of the element carbon in steel alloys under ambient air standard conditions. We carry out further optimization studies and investigate the influence of the gate delay time of the electron multiplier charged-coupled device (EMCCD) detector on the emission properties, namely signal and background intensities as well as signal-to-background ratio (SBR), of the previously selected CI 396.14 nm spectral line. Moreover, we study and compare various methods employed to construct analytical calibration functions of the carbon line under investigation. Furthermore, the analytical figures of merit are evaluated in each case.
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