Analytical study demonstrates continuous measurement of deuterated water in gas-saturated aqueous solutions, highlighting high-sensitivity tracing for physiological investigations.
Direct interfacing of a membrane based mass spectometer separator to an aqueous solution of water-saturted gas stream allows continuous monitoring of a vareity of dissolved volatile compunds. Even if the solution is saturated with atmoshpheric gases, we demonstrate that deuterated water concentration in aqueous solution can be measured over concentration ranges of interest to physiological studies, with an estimated, extrapolated detection limit less than the natural abundance.
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Püngor et al. (1982) studied this question.
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