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Geochemical Journal
Geochemical Journal An open access journal for geochemistry
Published for geochemistry community from Geochemical Society of Japan.

Direct measurements of D/H and 18O/16O fractionation factors between vapor and liquid water in the temperature range from 10 to 40°C

Masahisa Kakiuchi, Sadao Matsuo
Geochemical Journal, Vol. 13, No. 6, P. 307-311, 1979


Vapor phase was separately collected without liquid condensate by raising the temperature of the container of vapor phase by 7°C higher than that of the interface of vapor-liquid equilibrium. D/H and 18O/16O measurements were done for the identical aliquot of vapor samples in equilibrium with the liquid water in the temperature range from 10 to 40°C. The empirical relationships between αD, α18O and the temperature of equilibration were obtained to be, 103lnαD = 2.408 × 106T-2 + 6.455 × 104T-1 - 168.7, 103lnα18O = 5.9702 × 106T-2 - 3.2801 × 104T-1 + 52.227.

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