Initial measurements with the SUERC accelerator mass spectrometer

Carbon Dioxide Capture Using a Zeolite Molecular Sieve Sampling System for Isotopic Studies (13C and 14C) of Respiration

“…CO 2 was subsequently aliquoted into mass spectrometry tubes and δ 13 C ratios analyzed by isotope ratio mass spectrometry (IRMS; dual inlet, VG Optima, UK). Further sub-samples of CO 2 were flame-sealed in borosilicate glass tubes, one of which was prepared as a graphite target (Slota et al 1987) for 14 C measurement by accelerator mass spectrometry (AMS), by the 5MV tandem accelerator at the Scottish Universities Environmental Research Centre (SUERC), East Kilbride, UK (Freeman et al 2004;Xu et al 2004).…”

Atomic spectrometry update. Atomic mass spectrometry

“…113 The new method, which reduced processing time to 6 h and gave a recovery of B90%, lowered the concentration of sulfate sufficiently to allow 36 Cl : Cl ratios as low as 10 À13 -10 À14 to be measured. In comparison, Freeman et al 114 achieved a 36 Cl : Cl background ratio of 4 Â 10 À15 through the use of efficient foil stripping to Cl 71 ions in a 5 MV system. An ID procedure developed for determining both total Cl and 36 Cl concentrations in the same sample has been applied to the analysis of calcareous rocks.…”

A gas ion source for radiocarbon measurement at SUERC

“…In a joint project with National Electrostatic Corporation (NEC) to develop a gas ion source, our 39 MC-SNICS source, one of the two sources on the SUERC AMS system, was initially designed as a gas/solid hybrid ion source [10]. To run the hybrid ion source with CO 2 , a gas handling system was designed, making it possible to directly introduce gas into the ion source.…”