Determination of 15 Impurity Elements in Quartz Sand by Inductively Coupled Plasma-Atomic Emission Spectrometry

A method was developed to determine of Fe, Ti, Mg, Mn, Zn, Cu, Pb, As, Cd, Ni, Cr, Co, Sb, Al and Ba in the quartz sand by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The effect of the HF-HClO₄ and HF-H₂SO₄ digestion systems to the results was investigated. Moreover, the conditions of acid consumption, digestion temperature and instrumental conditions were optimized. The detection limits for the elements were 0.17-0.88 μg/g and the recoveries of the method were 90.4%-110.7% with RSD (n=6) of less than 5.0%. The method possesses the advantages of simple operation, high sensitivity, good precision and is suitable for routine analysis of impurity elements in the quartz sand.