"Non-invasive" portable laser ablation sampling of art and archaeological materials with subsequent Sr-Nd isotope analysis by TIMS using 1013 Ω amplifiers

A.C.S. Knaf; Janne Koornneef; Gareth R Davies

doi:10.1039/c7ja00191f

"Non-invasive" portable laser ablation sampling of art and archaeological materials with subsequent Sr-Nd isotope analysis by TIMS using 10¹³ Ω amplifiers

A.C.S. Knaf^*
, Janne Koornneef
, Gareth R Davies

^*Corresponding author for this work

Geology and Geochemistry

Research output: Contribution to Journal › Article › Academic › peer-review

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Abstract

A new integrated trace element and multi-isotope provenancing methodology is presented that uses a portable “non-invasive” pulsed laser ablation sampling technique. Samples are collected on location onto Teflon filters for return to a clean laboratory for low blank (pg) geochemical procedures. Ablation pits approximately 60 or 120 μm in width and depth remove mg amounts of material. Following dissolution, trace element ratios are determined by inductively coupled plasma mass spectrometry and combined Sr–Nd isotopes by thermal ionization mass spectrometry. Use of 10¹³ Ω resistors allows precise analysis of subnanogram amounts of Sr-Nd isotopes, which coupled with the trace element data, provides highly effective multi-variant discrimination for material provenance and authenticity verification. Monitoring of blank contributions is required.

Original language	English
Pages (from-to)	2210-2216
Number of pages	7
Journal	Journal of Analytical Atomic Spectrometry
Volume	32
Issue number	11
DOIs	https://doi.org/10.1039/c7ja00191f
Publication status	Published - 1 Nov 2017

Funding

This research received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement no. 319209 and the European Union's Horizon 2020 research and innovation programme under grant agreement no. 654208 (Europlanet 2020 RI). Thanks to Richard Smeets, Bas van der Wagt and Kirsten van Zuilen who provided analytical assistance. Bram Mooij and Judith van Santen are acknowledged for advice on ablation pit volume determination. Detlef Günther, Bodo Hat-tendorf, Joachim Koch, Debora Käser and Marcel Burger provided invaluable input on the laser modication and usage. We are grateful to Martin Oeser-Rabe, Mona Weyrauch and Stefan Dultz for conducting the 3D laser scanning microscopy.

Funders	Funder number
Seventh Framework Programme
European Research Council
Horizon 2020
Horizon 2020 Framework Programme	871149, 654208
European Commission	319209

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 16 Peace, Justice and Strong Institutions

Keywords

laser ablation sampling, Sr-Nd isotopes, low blank, TIMS, archaeometry

Access to Document

10.1039/c7ja00191fLicence: CC BY

Knaf et al., 2017Final published version, 789 KBLicence: CC BY

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Cite this

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abstract = "A new integrated trace element and multi-isotope provenancing methodology is presented that uses a portable “non-invasive” pulsed laser ablation sampling technique. Samples are collected on location onto Teflon filters for return to a clean laboratory for low blank (pg) geochemical procedures. Ablation pits approximately 60 or 120 μm in width and depth remove mg amounts of material. Following dissolution, trace element ratios are determined by inductively coupled plasma mass spectrometry and combined Sr–Nd isotopes by thermal ionization mass spectrometry. Use of 1013 Ω resistors allows precise analysis of subnanogram amounts of Sr-Nd isotopes, which coupled with the trace element data, provides highly effective multi-variant discrimination for material provenance and authenticity verification. Monitoring of blank contributions is required.",

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"Non-invasive" portable laser ablation sampling of art and archaeological materials with subsequent Sr-Nd isotope analysis by TIMS using 10¹³ Ω amplifiers. / Knaf, A.C.S.; Koornneef, Janne ; Davies, Gareth R.
In: Journal of Analytical Atomic Spectrometry, Vol. 32, No. 11, 01.11.2017, p. 2210-2216.

Research output: Contribution to Journal › Article › Academic › peer-review

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