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Determination of lead isotope ratios in environmental matrices by quadrupole ICP-MS working at low sample consumption rates Ghent University
Measurement of lead isotope ratios in environmental matrices using inductively coupled plasma-dynamic reaction cell-mass spectrometry at low sample consumption rates was investigated. Two micro-sample introduction systems were evaluated, namely the PFA micronebuliser associated with a low-volume spray chamber, working at 150 mL min?1 and the total-consumption sample introduction system TISIS, operating at 20 mL min?1. In both cases, the dynamic ...
Lead isotopic analysis of copper alloy artifacts from Tell Tweini : changing ore sources from the early bronze age to the iron age? Ghent University
Identifying the geological provenance of an artifact, i.e. the origin of the ores used to produce a metal, provides important information on ancient relationships and connections, trade, and the movement of raw materials and/or objects. The initial approach to this provenance question applied elemental chemical analysis of artifacts and their proposed ore sources, but soon proved to be ineffective due to chemical heterogeneities in ore deposits ...
Lead isotope analysis for provenancing ancient materials: a comparison of approaches KU Leuven
Lead isotope analysis has been used to determine the provenance of metals such as lead, silver and bronze for many decades. Nevertheless, different approaches to interpret lead isotopic ratios have been proposed. In this study, three methods to couple the lead isotopic signature of archaeological artefacts to their possible mineral resources will be compared: the conventional assessment of biplots, a clustering method combined with calculating ...
Coupling lead isotope analysis and petrography to characterize fabrics of storage and trade containers from Hala Sultan Tekke (Cyprus)* KU Leuven
Lead isotopes, thin- and sherd-section analyses are coupled on pottery-vessel fragments excavated from the Late Bronze Age site of Hala Sultan Tekke (south-east Cyprus) and representing fabrics used for the production of storage and trade containers. The fabrics of the sherds are first described according to general macroscopic observations. Based on the different fabrics identified, a petrographic analysis is carried out on thin sections and ...
From desert ores to Middle Kingdom copper: elemental and lead isotope data from the RMAH collection, Belgium KU Leuven Ghent University
Lead concentrations and isotope ratios in speleothems as proxies for atmospheric metal pollution since the Industrial revolution. Vrije Universiteit Brussel
Lead concentrations and isotope ratios from two speleothems from the Han-sur-Lesse cave in southern Belgium
were measured in order to study the ability of speleothems to act as archives of atmospheric pollution. To address
this aim we analyzed trace elemental Al and Pb compositions by LA-ICP-MS and ICP-MS as well as Pb isotopes by
MC-ICP-MS. The results help to identify three intervals characterized by particularly high enrichment ...
were measured in order to study the ability of speleothems to act as archives of atmospheric pollution. To address
this aim we analyzed trace elemental Al and Pb compositions by LA-ICP-MS and ICP-MS as well as Pb isotopes by
MC-ICP-MS. The results help to identify three intervals characterized by particularly high enrichment ...
Copper production and trade in the Niari Basin (Republic of Congo) from the 13th-19th century CE: chemical and lead isotope characterization KU Leuven
© 2018 University of Oxford In Central Africa, copper ore occurs in only a few locations and copper appears to have been a scarce commodity in the past—contrary to iron, which is attested more widely and earlier in the sub-Saharan archaeological record. This paper presents the first detailed characterization of an early copper-working region in Central Africa. Located along the southern border of the Republic of the Congo, the Niari Basin has ...
Differences in the elemental isotope definition may lead to errors in modern mass-spectrometry-based proteomics University of Antwerp
The elemental isotope definition used to calculate the theoretical masses and isotope distribution of (bio)molecules is considered to be a fixed, universal standard in mass-spectrometry-based proteomics. However, this is an incorrect assumption. In view of the ongoing advances in mass spectrometry technology, and in particular the ever-increasing mass precision, the elemental isotope definition and its variations should be taken into account. We ...