In the field of chemistry and biochemistry in particular Deuterium can be used as a filler track (tracer) in many cases, because the surface of the Earth is composed of three of the four water-water in natural water by mass, with a slightly heavy so on Earth (geochemistry), then how to determine source water from the difference of the different water sources in the ariam nadio (PUR), which led to the application of the origins and prevention of pollution in the water, and because the water is required as part of human life. In biochemistry, so it can track the path of nutrients or drugs in plants or in the human body. By tracking the path of the water mass, heavy, take them to.
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