Accelerator mass spectrometry sample preparation: Methods for 14C in 50-1000 microgram samples

George A. Klouda, Lloyd A. Currie, Douglas J. Donahue, A. J Timothy Jull, Ted H. Zabel

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A joint project was undertaken by the National Bureau of Standards (NBS) Atmospheric Chemistry Group and University of Arizona (UoA) Tandem Accelerator Mass Spectrometry Group to develop and evaluate accelerator 14C measurements of 50-1000 μg carbon samples at a modest accuracy of 5-10%. FeC alloy targets prepared from standards and samples averaged 1.6 μA 12C- current. 14C measurements yielded 5% precision and accuracy, limited by a blank equivalent to 11% modern carbon for targets containing ∼ 100 μg carbon. The contamination level was estimated to be ∼ 15 μg contemporary carbon (current atmospheric 14C). These results demonstrated that the FeC target is quite suitable for atmospheric and environmental studies that require measuring fossil/biogenic carbon in microgram samples.

Original languageEnglish (US)
Pages (from-to)265-271
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume5
Issue number2
DOIs
StatePublished - 1984

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Particle accelerators
Mass spectrometry
accelerators
mass spectroscopy
Carbon
preparation
carbon
Atmospheric chemistry
atmospheric chemistry
blanks
fossils
contamination
Contamination

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Accelerator mass spectrometry sample preparation : Methods for 14C in 50-1000 microgram samples. / Klouda, George A.; Currie, Lloyd A.; Donahue, Douglas J.; Jull, A. J Timothy; Zabel, Ted H.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 5, No. 2, 1984, p. 265-271.

Research output: Contribution to journalArticle

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