They also measured absolute abundance of each member of a network of 45 proteins involved in carbon metabolism in a one-hour mass spectrometry run. For mass spectrometry analyses, they used hybrid ...

Accelerator mass spectrometry (AMS) is an ultrasensitive technique for measuring the concentration ... and differentiating different sources of carbon. Adding the capability to measure other isotopes ...

(Today, scientists also use a different way to measure carbon-14 called accelerator mass spectrometry, which can get more precise results from a far smaller amount of sample but is more expensive). A ...

The carbon cycle is the biogeochemical cycle ... using gas chromatography mass spectrometry on samples from eastern Finland. The apparent respiratory quotient for bacterioplankton remineralization ...