LEAD ISOTOPE ANALYSIS OF ARCHAEOLOGICAL METALS BY MULTIPLE-COLLECTOR INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY*
Article first published online: 31 JAN 2006
Volume 48, Issue 1, pages 45–56, February 2006
How to Cite
BAKER, J., STOS, S. and WAIGHT, T. (2006), LEAD ISOTOPE ANALYSIS OF ARCHAEOLOGICAL METALS BY MULTIPLE-COLLECTOR INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY*. Archaeometry, 48: 45–56. doi: 10.1111/j.1475-4754.2006.00242.x
- Issue published online: 31 JAN 2006
- Article first published online: 31 JAN 2006
- *Received 15 December 2004; accepted 23 May 2005.
- LEAD ISOTOPE ANALYSIS;
- LASER ABLATION
Lead isotope ratios in archaeological silver and copper were determined by MC–ICPMS using laser ablation and bulk dissolution without lead purification. Laser ablation results on high-lead metals and bulk solution analyses on all samples agree within error of TIMS data, suggesting that problems from isobaric interferences and/or mass bias variations due to the presence of matrix elements are insignificant. Inaccurate laser ablation analyses on low-lead copper reflect erroneous mass bias corrections from use of a non-matrix matched standard. However, in most cases, silver and copper are analysable for lead isotopes by bulk dissolution or laser ablation MC–ICPMS with simplified sample preparation.