Jewellery. Determination of platinum in platinum jewellery alloys. Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element— 16 стр.
39.060 Jewellery. Including precious metals, precious and semi-precious stones / Ювелирное дело. Включая драгоценные металлы, драгоценные и полудрагоценные камни
