标准编号：ISO 11494:2008
中文名称：珠宝 铂珠宝合金中铂的测定 用钇作为内标元素的电感耦合等离子体（ICP） 溶液-光谱法
英文名称：Jewellery — Determination of platinum in platinum jewellery alloys — Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element
发布日期：2008-08
标准范围
This International Standard describes a method for the determination of platinum in platinum jewellery alloys,preferably within the range of fineness specified in ISO 9202, by means of inductively coupled plasma (ICP)emission spectrometry.The preferred platinum content of the alloys lies between 850 %o (parts per thousand) and 950 %~ platinum.NOTEThis method can be used to analyse other contents of platinum.Platinum jewellery alloys can contain silver, indium, gallium, copper, cobalt, nickel, tin and ruthenium. Thepresence of these alloying elements has not been observed to interfere with the determination method. Ifother elements are alloyed, a check is made as to whether any interference occurs.
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