What is the carbon isotope ratio test?
The carbon isotope ratio test tells you whether the source of the testosterone is the body — a natural source — or pharmaceuticals. We all have testosterone, men and women. If you have not taken pharmaceutical testosterone, it has a one carbon isotope ratio. If you have taken testosterone from pharmaceuticals, than it has another carbon isotope ratio. How is the carbon isotope test conducted? You go through a series of chemistry steps that are designed to take raw urine and turn it into an extracted sample that has been rendered suitable to do the test. IRMS is the name of a mass spectrometer that measures the ratio of carbon 13 to carbon 12. We have 20 mass spectrometers, but only one IRMS because it is dedicated to the task of precisely determining the carbon isotope ratio. Our other mass spectrometers look at dozens of steroids, but IRMS is just used for this test. The IRMS can differentiate between a natural source and a pharmaceutical source. It has to do with the ratio. How exact
