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Micro‐invasive method for studying lead isotopes in paintings*
Author(s) -
D'Imporzano P.,
Keune K.,
Koornneef J. M.,
Hermens E.,
Noble P.,
Zuilen K.,
Davies G. R.
Publication year - 2020
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/arcm.12549
Subject(s) - isotope , inductively coupled plasma mass spectrometry , lead (geology) , inductively coupled plasma , isotope analysis , sampling (signal processing) , mass spectrometry , analytical chemistry (journal) , chemistry , materials science , geology , environmental chemistry , plasma , chromatography , optics , physics , nuclear physics , oceanography , geomorphology , detector
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 10 13 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 206 Pb/ 204 Pb of < 0.02%. The methodology proved able to characterize Pb isotope differences within paint layers.