Since decay-counting records random events per unit time, uncertainty is an inherent aspect of the method. Contents 2. Radiocarbon dates can be corrected for isotopic fractionation, a correction called normalization. As ofthe standard format required by the journal Radiocarbon is as follows. Chemical methods for separating the organic collagen from the inorganic apatite components of bone created the opportunity to date both components and compare the results. To correct for this, scientists have compared radiocarbon dates from objects who's age is known by other means, such as artifacts from Egyptian tombs, and growth rings from ancient trees.
It is rapidly oxidized in air to form carbon dioxide and enters the global carbon cycle.
During its life, a plant or animal is in equilibrium with its surroundings by exchanging carbon either with the atmosphere, or through its diet. Carbon is distributed throughout the atmosphere, the biosphere, and the oceans; these are referred to collectively as the carbon exchange reservoir,  and each component is also referred to individually as a carbon exchange reservoir.