STUDY OF MATRIX EFFECTS ON DETERMINATION OF TRACE-ELEMENTS IN ALUMINUM, USING INDUCTIVELY-COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY .1. SELECTION OF SPECTRAL-LINES

The effect of an aluminum matrix on the determination of B, Ca, Cd, Co , Cr, Cu, Fe, Mg, Mn Ni, Si and Zn was studied. These elements are exp ected to be present in high purity At base materials. 45 spectral line s of these elements were scanned in a spectral window of 60 pm. Backgr ound equivalent concentrations were calculated and compared with exist ing data. Interference free spectral lines, one for each element, have been recommended to be used for analysis. Depression effects due to t he Al matrix were calculated at the selected lines.