ISO 11494:2008 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

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

ISO 11494:2008描述了一种通过电感耦合等离子体（ICP）发射光谱法测定铂珠宝合金中铂的方法，该方法最好在ISO 9202规定的纯度范围内。合金的首选铂含量介于850‰（千分之几）和950‰之间。铂金珠宝合金可含有银、铟、镓、铜、钴、镍、锡和钌。未观察到这些合金元素的存在会干扰测定方法。如果其他元素被合金化，则检查是否发生任何干扰。

ISO 11494:2008 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 ‰ (parts per thousand) and 950 ‰ platinum.Platinum jewellery alloys can contain silver, indium, gallium, copper, cobalt, nickel, tin and ruthenium. The presence of these alloying elements has not been observed to interfere with the determination method. If other elements are alloyed, a check is made as to whether any interference occurs.

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