Measuring stable carbon and nitrogen isotopes by IRMS and 14C by AMS on samples with masses in the microgram range: Performances of the system installed at CEDAD-University of Salento

Maruccio, Lucio; Quarta, Gianluca; Braione, Eugenia; Calcagnile, Lucio

doi:10.1016/j.ijms.2017.05.014

Cited by 12 publications

(7 citation statements)

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“…A fraction of the extracted collagen was separated from nine of the samples for the determination of the C:N ratio and for carbon and nitrogen stable isotope analyses which were performed by using an elemental analyzer (EA-Mod. Flash 2000 HT by Thermo) and an isotopic ratio mass spectrometry (IRMS) system (Delta V Plus by Thermo; Braione et al 2015;Maruccio et al 2017). The fraction selected for 14 C analysis was combusted to CO 2 in sealed quartz tubes with CuO and Silver wool and then reduced at 600°C to graphite with H 2 on Fe powder used as catalyst.…”

Section: Methodsmentioning

confidence: 99%

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

et al. 2019

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In this paper, we present the results of the accelerator mass spectrometry radiocarbon (AMS14C) dating campaign performed on samples selected from different levels in Grotta Romanelli (Castro, Italy). Grotta Romanelli is one of the key sites for the chronology of Middle Pleistocene–Holocene in Mediterranean region. After the first excavation campaigns carried out in the first decades of the 1900s, the cave has been systematically re-excavated only since 2015. During the last excavation campaigns different faunal remains were selected and submitted for 14C dating in order to confirm the chronology of the cave with a higher resolution. Isotopic ratio mass spectrometry (IRMS) measurements were also carried out on faunal remains.

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Section: Methodsmentioning

confidence: 99%

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

et al. 2019

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“…Integrated designs are also being developed to facilitate measurement of different quantities and parameters simultaneously from the same sample. This is already the case for combined elemental analyzer-isotope ratio mass spectrometry-AMS systems (EA-IRMS-AMS), which can measure carbon and nitrogen stable isotopes, concentration and radiocarbon age 353,354 .…”

Section: [H2] Measurement Techniquesmentioning

confidence: 99%

Radiocarbon dating

Hajdas

Ascough

Garnett

et al. 2021

Nat Rev Methods Primers

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Radiocarbon dating uses the decay of a radioactive isotope of carbon ( 14 C) to measure time and date objects containing carbon-bearing material. With a half-life of 5,700 ± 30 years, detection of 14 C is a useful tool for determining the age of a specimen formed over the last 55,000 years. In this Primer, we outline key advances in 14 C measurement and instrument capacity, as well as optimal sample selection and preparation. We discuss data processing,

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“…With this setup, we could demonstrate stable operating conditions and the possibility to analyze samples of mass as low as 10 μgC with uncertainty levels of 1% and with background levels of 5×10 –14 (Maruccio et al 2017).…”

Section: Methodsmentioning

confidence: 99%

The New Gas Ion Source at CEDAD: Improved Performances and First ¹⁴C Environmental Applications

et al. 2018

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A new sputtering ion source has been installed at CEDAD (Centre for Dating and Diagnostics) at the University of Salento in Lecce, Italy. The installation of the new ion source, capable of accepting both solid and gas samples, required significant modifications of the existing low energy injector of the accelerator mass spectrometry (AMS) system. The new ion source is connected, through an in-house designed gas handling interface, to an elemental analyzer which combusts the samples to carbon dioxide and splits the gas into an IRMS system and also to the gas feed line of the ion source. This arrangement allows the simultaneous measurement of C, N content (in the EA), carbon and nitrogen stable isotopic ratios by IRMS and radiocarbon (14C) by AMS on samples with masses in the microgram range. The results of different tests performed to find optimal operational conditions and to improve the system performances are presented. The performances of the system as a function of the diameter of the glass capillary used to feed the source and the pressure of the gas mixture in the syringe are also presented. The achievable precision and blank levels are discussed together with the results obtained in environmental studies.

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Measuring stable carbon and nitrogen isotopes by IRMS and 14C by AMS on samples with masses in the microgram range: Performances of the system installed at CEDAD-University of Salento

Cited by 12 publications

References 12 publications

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

Radiocarbon dating

The New Gas Ion Source at CEDAD: Improved Performances and First ¹⁴C Environmental Applications

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Measuring stable carbon and nitrogen isotopes by IRMS and 14C by AMS on samples with masses in the microgram range: Performances of the system installed at CEDAD-University of Salento

Cited by 12 publications

References 12 publications

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

New Radiocarbon Dating Results from the Upper Paleolithic–Mesolithic Levels in Grotta Romanelli (Apulia, Southern Italy)

Radiocarbon dating

The New Gas Ion Source at CEDAD: Improved Performances and First 14C Environmental Applications

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Product

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The New Gas Ion Source at CEDAD: Improved Performances and First ¹⁴C Environmental Applications