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- W3142907935 abstract "A known volume of a heavy water sample is equilibrated with a known volume of pure helium gas at atmospheric pressure in a sample tube. The dissolved gases evolve into the helium and distribute themselves between the gaseous and liquid phases according to their equilibrium partial pressures. These partial pressures of the gases in the equilibrium gas mixture are determined by analysing it gas-chromatographically. From these analytical data and the absorption coefficients of deuterium and nitrogen, their original concentrations in heavy water are calculated. Corrections for the increase in the total pressure of the gaseous phase owing to evolved gases are calculated and found to be negligible. Air contamination during sampling and analysis can be detected by the presence of the oxygen peak in the chromatogram and corrected for. The calculation is facilitated by programming it on an electronic calculator. The method is much simpler and faster than the vacuum method usually applied for this analysis. One determination can be completed in about an hour. The average deviation and standard deviation have been estimated at 0.19 ml/liter heavy water and 0.25 ml/liter heavy water respectively in deuterium, and 0.36 and 0.68 ml/liter in nitrogen." @default.
- W3142907935 created "2021-04-13" @default.
- W3142907935 creator A5039129227 @default.
- W3142907935 date "1976-10-01" @default.
- W3142907935 modified "2023-09-27" @default.
- W3142907935 title "A SIMPLE AND RAPID GAS CHROMATOGRAPHIC METHOD FOR THE DETERMINATION OF DISSOLVED DEUTERIUM AND NITROGEN IN THE HEAVY WATER COOLANT OF A NUCLEAR REACTOR." @default.
- W3142907935 hasPublicationYear "1976" @default.
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