ICP-AES Determination of Pb, Cr, Co, As, Sn, Al, Zr, Mo and B in the Products Related by REACH Regulation

A method of ICP-AES for the determination of Pb, Cr, Co, As, Sn, Al, Zr, Mo and B in the products related with REACH regulation was proposed. 0.2 g of sample was treated by microwave digestion with and 8 mL HNO3-2 mL H2O2 for polymeric samples and with 6 mL HNO3-2 mL H2O2 and 2 mL HF for inorganic samples. Values of method detection limit for the elements were found less than 15 mg·kg-1. Test for recovery was made by standard addition method, giving values of recovery and RSD′s (n=7) in the ranges of 82.4%-108% and 3%-6% respectively.