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The more sugar-sweetened beverages an individual consumes, the greater alanine's carbon isotope ratio will be.
The report further said that extracts from the USADA letter said that by using carbon isotope ratio analysis, it was found that Gay's samples had an adverse analytical finding, which reflected values that are consistent with the administration of a steroid of external nature.
Professor Julia Lee-Thorp from Oxford University with researchers from Chad, France and the US analyzed the carbon isotope ratios in the teeth and found the signature of a diet rich in foods derived from C4 plants.
Experimental evidence for the relationship of the carbon isotope ratios of whole diet and dietary protein to those of bone collagen and carbonate, in J.
Sample data from each instrument, including models that measure the carbon isotope ratio (delta-13C), water vapor isotopes ratios (delta-16O, delta-D), various greenhouse gases like carbon dioxide and methane, and other gas concentrations are also included.
Carbon isotope ratios, mineral concentrations, and rock deformations were similar to those seen in Yucatan and other impact crater sites.
Carbon isotope ratios,mineral concentrations,and rock deformations were similar to those seen in Yucatan.
12]) Accelerator Mass Spectrometry (AMS) Coupled With Stable Carbon Isotope Ratio Mass Spectrometry (IRMS) ([C.