Study of Spectral Interferences and Line Selection for Steel Analysis Using Inductively Coupled Plasma Atomic Emission Spectrometry ICP-AES

Abstract

This paper is devoted to spectral interference studies and line selection for Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) when a low resolution spectrometer (∆λ min = 2 Å) is used for steel analysis. It has been identified that some of the most intense lines for Cobalt, Zirconium, Lead, Nickel, Niobium and Molybdenum at low resolution cannot be used owing to spectral interferences. Different interference free lines for Cobalt, Chromium, Vanadium, Nickel, Molybdenum and Manganese have therefore been selected. The possibility of differentiating different types of steel by recording their spectrum at particular regions of wavelength corresponding to their elemental composition has also been demonstrated in this paper.