Abstract Portable XRF (X-ray fluorescence spectrometry) was used during non-invasive measurements of Limoges enamels from the collection of the National Museum in Warsaw (Poland). Four tiny micro-samples with dimensions below 1 mm 2 were collected from 3 objects and subjected to multi-elemental LA-ICP-MS (Laser Ablation Inductively Coupled Plasma Mass Spectrometry) investigations, including oxides quantification and data imaging approach. Comparison of the obtained LA-ICP-MS data and literature glass compositional information allowed for possible dating of the investigated plaques to 16th or the first half of 17th century. The XRF spectra revealed the unexpected presence of Pt in one of the analyzed objects within areas of evident intervention/restoration recognized by a conservator. These results were confirmed by LA-ICP-MS imaging of a tiny silvery foil fragment sampled from the restoration inserts. Probably the first or one of the first examples of identification of Pt foil in a repair on a Limoges enamel restoration is reported in this work.

中文翻译：

---

激光烧蚀电感耦合等离子体质谱分析微量样品的便携式 X 射线荧光原位研究利摩日彩绘瓷釉

摘要 便携式 XRF（X 射线荧光光谱法）用于对华沙（波兰）国家博物馆收藏的利摩日珐琅进行非侵入性测量。从 3 个物体中收集了四个尺寸小于 1 mm 2 的微小微型样品，并进行了多元素 LA-ICP-MS（激光烧蚀电感耦合等离子体质谱）研究，包括氧化物定量和数据成像方法。将获得的 LA-ICP-MS 数据和文献玻璃成分信息进行比较，可以确定所研究的斑块的年代可能为 16 世纪或 17 世纪上半叶。XRF 光谱揭示了在保护人员识别出的明显干预/修复区域内的一个分析对象中意外存在 Pt。这些结果通过 LA-ICP-MS 对从修复嵌件中取样的微小银色箔片碎片成像得到证实。在这项工作中，可能是第一个或第一个在利摩日牙釉质修复体修复中识别 Pt 箔的例子。