To ensure pure CO production, a vacuum of -25 psi must be established.
During volatile pyrolysis, the inner tube is purged with Argon while the outer tube is purged with oxygen.
Drying of the sample in a furnace will reduce the accumulation of water within the system.
The combustion system utilized by the ISGS consists of an inner and an outer quartz tube.
Preceding extraction of carbon dioxide from SOM samples, pretreatment is necessary.
Each sample must be pretreated with heated 2 N HCl followed by rinsing with deionized water and vacuum filtration.
the 14 biological objects from archaeological excavations of the tram line 2, with particle accelerators, AMS method, including the bone material, burnt or not, with or without extraction of collagen.
When these curves are used, their accuracy and shape are the factors that determine the accuracy of the age obtained for a given sample.
This is expressed by the following differential equation, where N is the number of radioactive atoms and λ is a positive number called the decay constant: atoms to the sum of all other carbon atoms at the point of the organism's death and hence the point when the decay started, is approximately the ratio in the atmosphere.