Micro-invasive method for studying lead isotopes in paintings*

P. D'Imporzano; K. Keune; J. M. Koornneef; E. Hermens; P. Noble; K. van Zuilen; G. R. Davies

doi:10.1111/arcm.12549

Micro-invasive method for studying lead isotopes in paintings*

P. D'Imporzano^*
, K. Keune
, J. M. Koornneef
, E. Hermens
, P. Noble
, K. van Zuilen
, G. R. Davies

^*Corresponding author for this work

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

Abstract

A micro-invasive technique is presented that enables pigment sampling from individual layers of a painting cross-section by obtaining a furrow 10–50 μm wide of chosen length. Combined with increased sensitivity of lead (Pb) isotope analysis using multicollector inductively coupled plasma mass spectrometry (MC-ICPMS) equipped with a 10¹³ Ω resistor or a Pb double-spike technique, the amount of Pb needed for isotopic analysis is drastically reduced, while maintaining a relative 2 SD precision for ²⁰⁶Pb/²⁰⁴Pb of < 0.02%. The methodology proved able to characterize Pb isotope differences within paint layers.

Original language	English
Pages (from-to)	796-809
Number of pages	14
Journal	Archaeometry
Volume	62
Issue number	4
Early online date	4 Mar 2020
DOIs	https://doi.org/10.1111/arcm.12549
Publication status	Published - 1 Aug 2020

Funding

The project was funded by the Netherlands Institute for Conservation, Art and Science (NICAS), NWO programme. The authors are thankful for the technical support provided by Roel van Elsas and the VU fine mechanical workshop. Moorea Hall‐Aquitania assisted with preparation of the paint mock‐up.

Keywords

10 Ω amplifier
lead isotopes
lead white pigment
MC-ICPMS
micro-invasive sampling

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10.1111/arcm.12549

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title = "Micro-invasive method for studying lead isotopes in paintings*",

abstract = "A micro-invasive technique is presented that enables pigment sampling from individual layers of a painting cross-section by obtaining a furrow 10–50 μm wide of chosen length. Combined with increased sensitivity of lead (Pb) isotope analysis using multicollector inductively coupled plasma mass spectrometry (MC-ICPMS) equipped with a 1013 Ω resistor or a Pb double-spike technique, the amount of Pb needed for isotopic analysis is drastically reduced, while maintaining a relative 2 SD precision for 206Pb/204Pb of < 0.02\%. The methodology proved able to characterize Pb isotope differences within paint layers.",

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AU - Keune, K.

AU - Koornneef, J. M.

AU - Hermens, E.

AU - Noble, P.

AU - van Zuilen, K.

AU - Davies, G. R.

PY - 2020/8/1

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KW - 10 Ω amplifier

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ER -

Micro-invasive method for studying lead isotopes in paintings*

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