A new approach is presented for the simultaneous analysis of lead isotope ratios and gold, lead, and bismuth concentrations in metallic silver using nanosecond laser ablation multi-collector inductively-coupled plasma mass spectrometry (LA-MC-ICP-MS). Corrections for both isotope and concentration analyses are performed using an in-house matrix matched silver reference material RM3834. Accuracy and external reproducibility are demonstrated by repeat analyses of a further seven silver reference materials all characterised by solution (MC)-ICP-MS approaches. Typical internal precisions, expressed as two relative standard errors (S.E.) of the mean of the cycles comprising one analysis, are <0.5% for ²⁰⁶Pb/²⁰⁴Pb, ²⁰⁷Pb/²⁰⁴Pb and ²⁰⁸Pb/²⁰⁴Pb, and <0.03% for ²⁰⁷Pb/²⁰⁶Pb and ²⁰⁸Pb/²⁰⁶Pb. External reproducibilities, based on repeat analyses over a 10 month period and expressed as two relative standard deviations (S.D.) of the mean, are <0.4% for ²⁰⁶Pb/²⁰⁴Pb, ²⁰⁷Pb/²⁰⁴Pb and ²⁰⁸Pb/²⁰⁴Pb and <0.2% for ²⁰⁷Pb/²⁰⁶Pb and ²⁰⁸Pb/²⁰⁶Pb. Internal precisions and external reproducibilities of gold, lead and bismuth concentration analyses are typically <25%. Data are consistent with solution-based approaches. Methods are further demonstrated through analyses of a set of Islamic silver dirhams from the mint of al-Muhammadiyya, highlighting their applicability to geochemical studies of archaeological artefacts.

提出了一种使用纳秒激光烧蚀多收集器电感耦合等离子体质谱（LA-MC-ICP-MS）同时分析金属银中铅同位素比和金，铅和铋浓度的新方法。使用内部基质匹配的银参考物质RM3834对同位素和浓度分析进行校正。通过对另外七种均以溶液（MC）-ICP-MS方法表征的银标准物质进行重复分析，证明了准确性和外部重现性。对于²⁰⁶ Pb / ²⁰⁴ Pb，²⁰⁷ Pb / ²⁰⁴ Pb和²⁰⁶ Pb / ²⁰⁴ Pb和²⁰⁷ Pb / ²⁰⁴ Pb，典型的内部精度表示为包含一个分析的循环平均值的两个相对标准误差（SE）。²⁰⁸ Pb / ²⁰⁴ Pb，而²⁰⁷ Pb / ²⁰⁶ Pb和²⁰⁸ Pb / ²⁰⁶ Pb <0.03％。外部重现性基于10个月的重复分析并表示为平均值的两个相对标准偏差（SD），对于²⁰⁶ Pb / ²⁰⁴ Pb，²⁰⁷ Pb / ²⁰⁴ Pb和²⁰⁸ Pb / ²⁰⁴ Pb为<0.4％，并且< ²⁰⁷ Pb / ²⁰⁶ Pb和²⁰⁸ Pb / ²⁰⁶为0.2％铅 金，铅和铋浓度分析的内部精度和外部重现性通常<25％。数据与基于解决方案的方法一致。通过对来自al-Muhammadiyya薄荷的一组伊斯兰银迪拉姆进行分析，进一步证明了这些方法，突出了它们在考古文物地球化学研究中的适用性。