Open ablation cell for LA-ICP-MS investigations of historic objects

Barbara J. Wagner · Wojciech Jȩdral

40 citations0/0 files storedJournal of Analytical Atomic Spectrometry

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Cultural Heritage Materials Analysis Analytical chemistry methods development Laser-induced spectroscopy and plasma

Abstract

Laser ablation (LA) of historic objects (glass and ceramic) as well as reference materials (NIST610 and SRM679) was executed in standard closed or home made open ablation cells of different intrinsic volume (c.a. 60 cm3 and 9 cm3 or 4.5 cm3 respectively). Comparative investigations with different ablation cells were carried out with argon as the carrier gas and registration of transient signals during the subsequent multielemental analysis by means of inductively coupled plasma mass spectrometry (ICP-MS). Open cells allowed direct ablation from surface of historic objects and demonstrated suitability for mapping and quantitative elemental analysis. Resolution of created maps showing distribution of selected elements was improved by using open cells for which the rinse out time of aerosol was noticeably shortened (by a factor of 3) compared to the standard cell. The accuracy of quantitative elemental results obtained for ceramic objects was tested using SRM679 Brick Clay in the form of pressed pellet and was found to be satisfactory. It was demonstrated that the applicability of LA-ICP-MS in archaeometry as well as conservation science could be enhanced by popularization of open cells for the direct ablation from objects, which are too big to fit to standard cells and require strict limitation of sampling.

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References

2010In Situ Noninvasive Study of Artworks: The MOLAB Multitechnique Approach 2008LA-ICP-MS analysis of African glass beads: Laboratory inter-comparison with an emphasis on the impact of corrosion on data interpretation 2009Role of laser ablation–inductively coupled plasma–mass spectrometry in cultural heritage research: A review 2009Laser ablation‐inductively coupled plasma mass spectrometry in archaeometric research 2011Provenance of Early Bronze Age metal artefacts in Western Switzerland using elemental and lead isotopic compositions and their possible relation with copper minerals of the nearby Valais 1999Determination of impurities in antique silver objects for authentication by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)2010Raw materials for medieval to post-medieval Tuscan glassmaking: new insight from LA-ICP-MS analyses 2011Imaging fossil bone alterations at the microscale by SR-FTIR microspectroscopy

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2019Glass bead trade in northeast Africa.The evidence from Meroitic and post-Meroitic Nubia 2014Analytical procedure for characterization of medieval wall-paintings by X-ray fluorescence spectrometry, laser ablation inductively coupled plasma mass spectrometry and Raman spectroscopy 2012Metallurgical and chemical characterization of copper alloy reference materials within laser ablation inductively coupled plasma mass spectrometry: Method development for minimally-invasive analysis of ancient bronze objects

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