This paper evaluates the possibility of analyzing the composition of high-quality copper scrap with X-ray fluorescence spectrometry (XRF) instead of electrogravimetry combined with flame atomic absorption spectroscopy (EG+FAAS) method. The evaluation of the methods was performed on three real copper scraps. the composition of which were estimated in average samples taken after re-melt... https://cosmeticssquadets.shop/product-category/cream-mask/