The scientists used an
accelerator mass spectrometer to determine the C-14 levels in the alcohol components of 20 Australian red wines with vintages from 1958 to 1997.
Ann McNichol, a WHOI senior researcher, analyzed the samples at the National Ocean Sciences
Accelerator Mass Spectrometer Facility at WHOI.
The amount of 14C-labeled vitamin B-12 in the sample is measured with an
accelerator mass spectrometer, which can count single atoms of 14C.
Kenneth Turtletaub, a scientist at Lawrence Livermore National Laboratory, uses an
accelerator mass spectrometer to look at nanostructures for biomarkers of exposure to carcinogenic chemicals, characterizing perturbations at the atomic level.
Each Plantago and Pectocarya sample was pretreated, combusted, and run through the tandem accelerator at the
Accelerator Mass Spectrometer Laboratory (AMS) at the University of Arizona.
The scientists used a highly-sensitive analytical device called an
accelerator mass spectrometer to determine the C-14 levels in the alcohol components of 20 Australian red wines with vintages from 1958 to 1997 and then compared these measurements to the radioactivity levels of known atmospheric samples.
Reddy and colleagues worked with WHOI chemist Bill Jenkins and colleagues at the National Ocean Sciences
Accelerator Mass Spectrometer facility at WHOI to develop an extremely precise radiocarbon-based calibration method for determining if the balance of biofuels and petroleum is correct.
O'Brien's group applied
accelerator mass spectrometer (AMS) dating to 7 of 18 footwear specimens discovered more than 40 years ago in central Missouri's Arnold Research Cave.