Abstract

Two batches of silicate glass doped with precious metals (PMs) (Pt, Rh, Pd, Os, Ir, Ru, Au, and Re) were prepared as analytical reference materials at very high oxygen potentials, which can be achieved only at elevated pressure. The high oxygen potentials allow the PMs to dissolve in the glasses as oxide components. The two glasses were examined and characterized using electron probe X-ray microanalyzer (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for their chemical composition and homogeneity. The glasses were found to be homogeneous on the micron scale or less to within analytical precision, and are well suited as standards for the rapid and accurate LA-ICP-MS analysis of PMs in silicate slags or similar materials.

Graphical Abstract

中文翻译：

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开发用于硅酸盐基冶金渣中痕量元素分析的含PGE硅酸盐玻璃标准液

摘要

制备了两批掺杂了贵金属（Pt，Rh，Pd，Os，Ir，Ru，Au和Re的硅酸盐玻璃）的氧势非常高的分析参考材料，只有在高压下才能实现。高氧势使PM作为氧化物成分溶解在玻璃中。使用电子探针X射线微量分析仪（EPMA）和激光烧蚀电感耦合等离子体质谱仪（LA-ICP-MS）对这两种玻璃进行了检查和表征，以了解其化学组成和均一性。发现该玻璃在微米级或更均匀的范围内，甚至在分析精度范围内，非常适合作为硅酸盐矿渣或类似材料中PM的快速，准确LA-ICP-MS分析的标准。

图形概要