GB/T 21198.3-2007
AbolishedDetermination of precious metals in precious metals jewellery alloys - Method using ICP spectrometry - Part 3: Palladium jewellery alloys - Determination of palladium - Method using a solution with yttrium as internal standard element
贵金属合金首饰中贵金属含量的测定 ICP 光谱法 第3部分:钯合金首饰 钯含量的测定 采用钇为内标
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 方法原理 → 4 试剂材料 → 5 仪器 Foreword → 1 Scope → 2 Normative References → 3 Principle of Method → 4 Reagents and Materials → 5 Apparatus
Scope
This part of GB/T 21198 specifies a method for the determination of palladium in palladium jewellery alloys using ICP spectrometry with yttrium as internal standard. This part is applicable to palladium jewellery alloys with a palladium content of 475% to 970%. Note: Palladium jewellery alloys may contain silver, iridium, gallium, copper, cobalt, nickel, tin, ruthenium. The presence of these alloy elements generally does not cause interference during the determination.
GB/T 21198 的本部分规定了以钇为内标采用 ICP 光谱法测定钯合金首饰中钯含量的方法。本部分适用于钯含量为 475%~970%的钯合金首饰。注: 钯合金首饰中可能含有银,铱,镓,铜,钴,镍,锡,钌。含有这些合金元素在测定过程中一般不产生干扰。
Normative References
Keywords
Application Summary AI generated
Jewellery testing laboratories and manufacturers use this standard to accurately determine the palladium content in palladium alloy jewellery. It ensures precise and reproducible results by employing ICP spectrometry with yttrium as an internal standard. This standard is crucial for product quality assurance, consumer protection, and facilitating international trade.
珠宝检测机构和首饰生产商使用该标准来准确测定钯合金首饰中的钯含量。该标准通过ICP光谱法配合钇内标，确保检测结果的精确性和可重复性。它对于保障首饰产品质量、维护消费者权益以及促进国际贸易具有重要意义。
AI Summary AI generated
This standard specifies a method for determining palladium content in palladium jewellery alloys using ICP spectrometry with yttrium as an internal standard, applicable to alloys with palladium content between 475% and 970%. The method involves dissolving the sample in aqua regia, adding an internal standard solution, measuring the emission intensity ratio of palladium and yttrium via ICP spectrometer, and comparing with standard solutions to calculate palladium content. The standard also specifies reagent grades and instrument requirements, noting that common alloying elements do not cause interference.
本标准规定了采用ICP光谱法以钇为内标测定钯合金首饰中钯含量的方法，适用于钯含量在475%至970%之间的合金。方法包括样品溶解于王水、加入内标溶液、通过ICP光谱仪测量钯和钇的发射强度比值，并与标准溶液比较计算钯含量。标准还列出了试剂规格和仪器要求，并指出常见合金元素不产生干扰。
Key Sentences extracted from text
GB/T 21198 的本部分规定了以钇为内标采用 ICP 光谱法测定钯合金首饰中钯含量的方法。
本部分适用于钯含量为 475%~970%的钯合金首饰。
准确称量样品,溶于王水中,制成准确质量的溶液。
应用 ICP 光谱仪,将样品溶液中钯(340.45 nm)和钇(371.03 nm)的光谱发散强度比值与含有已知质量的铂和钇溶液的比值比较,测量钯的含量。
除非另有说明,在分析中仅使用确认为分析纯的试剂和蒸馏水或去离子水或相当纯度的水。
This part of GB/T 21198 specifies a method for the determination of palladium in palladium jewellery alloys using ICP spectrometry with yttrium as internal standard.
This part is applicable to palladium jewellery alloys with a palladium content of 475% to 970%.
Accurately weigh the sample, dissolve it in aqua regia, and prepare a solution of accurate mass.
Using an ICP spectrometer, compare the ratio of spectral emission intensities of palladium (340.45 nm) and yttrium (371.03 nm) in the sample solution with the ratio of solutions containing known masses of platinum and yttrium to measure the palladium content.
Unless otherwise specified, only reagents confirmed to be analytically pure and distilled or deionized water or water of equivalent purity shall be used in the analysis.