Application of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for the investigation of ancient silver coins

Sarah, Guillaume; Gratuze, Bernard; Barrandon, Jean-Noël

doi:10.1039/b704879c

Cited by 53 publications

(31 citation statements)

References 22 publications

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“…ICP-MS) prevailed. 10 Nevertheless, requiring the latter approach sampling or micro-sampling, a neutron technique has been preferred for this work.…”

Section: Introductionmentioning

confidence: 99%

Compositional analysis of a historical collection of Cisalpine Gaul's coins kept at the Hungarian National Museum

Corsi

Maróti

et al. 2015

J. Anal. At. Spectrom.

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The Cisalpine Gaul's coinage has been produced by different tribes settled in northern Italy between the 4th and the 1st century B.C. During this wide chronological period several types of silver drachms have originated, nowadays classified by numismatists in different typologies. To verify the presence of a debasement along the years and to investigate the exchange ratios among different drachmas, the rich collection of the Hungarian National Museum in Budapest has been analysed. Measurements have been performed at the Budapest Neutron Centre with the Prompt Gamma Activation Analysis (PGAA), a bulk technique which enables overcoming of surface enriched layers and alterations. This technique allows silver and copper to be quantified, while to check the presence of tin and other minor elements X-ray fluorescence (XRF) has been used. Results show that the silver content falls from 94% of the first emissions up to 50% of the Cenomans' and Insubres' tribes late typologies. This strong debasement takes place between the III and the II century B.C. and could be related to the military efforts in the decades around the second Punic war. At the same time, we observe the transition from a binary silvercopper alloy to a ternary one, made of silver, copper and tin.

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“…ICP-MS) prevailed. 10 Nevertheless, requiring the latter approach sampling or micro-sampling, a neutron technique has been preferred for this work.…”

Section: Introductionmentioning

confidence: 99%

Compositional analysis of a historical collection of Cisalpine Gaul's coins kept at the Hungarian National Museum

Corsi

Maróti

et al. 2015

J. Anal. At. Spectrom.

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show abstract

“…Bioimaging of Metals in Small Section of Samples by Nano-LA-ICP-MS However, in spite of all the advantages of the LA-ICP-MS technique, its application in some analytical tasks is limited by the restriction in focusing the laser beam due to the diffraction feature of the light and, therefore, a finite lateral resolution, i.e. from 5 to 300 mm [87][88][89], that, in some cases, would be insufficient, for example, for the analysis of the fine structures of small regions of biological tissues and single cells [90][91][92]. In order to improve the lateral resolution of LA-ICP-MS to the nm scale range, Nano-LA-ICP-MS was introduced by Becker et al [93].…”

Section: Bioimaging Of Metals In Gelsmentioning

confidence: 99%

Bioimaging of Metals and Proteomic Studies of Clinical Samples by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA‐ICP‐MS)

Becker

Becker²

2012

Analytical Techniques for Clinical Chemistry

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“…Mateo et al [24] analizan aceros recubiertos con polímeros, utilizan un láser con anchura de pulso de 120 femtosegundos, y obtienen una resolución de 240 nm para un acero galvanizado y de 2,3 µm para un recubrimiento polímero-políme-ro sobre galvanizado. Sarah et al [25] han aplicado la técnica al estudio de monedas antiguas, desarrollado un protocolo que permite la realización de perfiles de concentración en profundidad, tanto para los elementos mayoritarios (plata y cobre) como para los minoritarios (zinc, oro, plomo, bismuto), verificado el enriquecimiento superficial en plata.…”

Section: Introductionunclassified

Resolución espacial en la ablación láser acoplada a la espectrometría de masas con fuente de plasma de acoplamiento inductivo.

Coedo¹,

Dorado²

2010

REVMETAL

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ResumenLa ablación láser como sistema de introducción de muestra a la espectrometría de masas con fuente de plasma de acoplamiento inductivo (LA-ICP-MS) ofrece la posibilidad de conocer la distribución espacial de los elementos. Variando la posición del haz láser sobre la superficie, se obtiene el perfil de la distribución lateral de elementos y, haciendo incidir sucesivos pulsos sobre un punto fijo, se obtiene el perfil de concentraciones en profundidad. Después de optimizar los parámetros operatorios se ha aplicado la técnica a muestras con distintas composiciones tanto en superficie como en profundidad. Con relación a la resolución lateral se ha comprobado que en una longitud similar al diámetro del cráter del haz láser, las señales de los elementos presentes aparecen mezcladas lo que dificulta establecer con precisión la interfase. En cuanto a la resolución en profundidad se establece claramente la influencia de la abundancia natural de los isótopos medidos. Palabras claveAblación láser; Espectrometría de masas con fuente de plasma de acoplamiento inductivo; Resolución espacial; Muestras soldadas; Muestras metálicas recubiertas. Spatial resolution in laser ablation inductively coupled plasma mass spectrometry AbstractLaser ablation as sampling system in inductively coupled plasma mass spectrometry (LA-ICP-MS) offers the possibility to know the spatial distribution of elements present in a solid sample. By varying the position of the laser beam on the sample surface, the profile of the lateral distribution of elements is obtained and, with successive pulses fired on a fixed point, profile in depth is achieved. After optimization of operating parameters the technique has been applied to samples with different compositions in both surface and depth. With regard to the lateral resolution has been found that in a length similar to the crater diameter of the laser beam, the signals of the elements appear mixed, making difficult to accurately establish the interface. Regarding the resolution in depth is clearly established the influence of the natural abundance of the measured isotopes.

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Application of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for the investigation of ancient silver coins

Cited by 53 publications

References 22 publications

Compositional analysis of a historical collection of Cisalpine Gaul's coins kept at the Hungarian National Museum

Compositional analysis of a historical collection of Cisalpine Gaul's coins kept at the Hungarian National Museum

Bioimaging of Metals and Proteomic Studies of Clinical Samples by Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA‐ICP‐MS)

Resolución espacial en la ablación láser acoplada a la espectrometría de masas con fuente de plasma de acoplamiento inductivo.

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