[Simultaneous determination of Cr, Cd, Br, Pb, and Hg of regulated substances in electrotechnical products by XRF spectrometry].

The objective of the present research was to develop a nondestructive technique for the analysis of heavy elements of regulated substances in electrotechnical products using an XRF spectrometer. Reference samples were prepared within-house reference materials containing the elements Cr, Cd, Br, Pb, and Hg, and calibration curves of all elements exhibited a good linearity from 100 to 1 500 mg x kg(-1). Thus, the calibration curve method was effective in the determination of heavy elements in electrotechnical products.