Physical Sciences and Mathematics Commons^™

A New Accelerator Mass Spectrometry System For 14c-Quantification Of Biochemical Samples, Ted J. Ognibene, Graham Bench, Tom A. Brown, Graham F. Peaslee, John S. Vogel

Faculty Publications

A compact accelerator mass spectrometry (AMS) system that meets our requirements for View the MathML source-quantification of biochemical samples is described. The spectrometer occupies approximately 5 m2 of floor space and can measure >300 samples per day with 3% precision. A long diffuse gas cell is used to destroy interfering molecules and to charge exchange injected negative ions. System sensitivity is <1 amol View the MathML source/mg carbon on milligram-sized samples with a dynamic range that extends over 4 orders magnitude. All components, with the exception of the ion source, are commercially available and the system operates reliably with low maintenance.