Tof-SIMS spectra of historical inorganic pigments: Copper-, zinc-, arsenic-, and phosphorus-containing pigments in positive polarity
Résumé
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is increasingly used to analyze cultural heritage materials because it can simultaneously detect organic and inorganic materials while mapping them on a surface. The precise identification of a pigment in a specific layer of a painting or of remaining color on a statue can inform about the technique used or the time of manufacture as well as expose possible forgeries when anachronistic ingredients are identified. Reference spectra are required to confidently identify a given pigment using ToF-SIMS. This paper focuses on eight pigments containing copper, zinc, arsenic, or phosphate, all manufactured following historical recipes. The positive polarity ToF-SIMS reference spectra using a Bi3 + primary ion species are presented here. Presented together, these spectra and corresponding tables of secondary ions provide a valuable help in differentiating these pigments, because copper, zinc, arsenic, or phosphate, combined with oxygen, share many mass interferences.
Mots clés
CrossMark SIMS Peach black Bone black Realgar Bristol yellow medium Azurite Malachite Verdigris Zinc white Instrument: IONTOF TOF SIMS IV Cu Zn P Ca As S V Bi Cl Minor Species in Spectra: Hydrocarbon contamination
CrossMark SIMS Peach black
Bone black
Realgar
Bristol yellow medium
Azurite
Malachite
Verdigris
Zinc white Instrument: IONTOF
TOF SIMS IV Cu
Zn
P
Ca
As
S
V
Bi
Cl Minor Species in Spectra: Hydrocarbon contamination
Domaines
Chimie analytiqueOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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Licence |