By mixing aliquots of pure Na2CO3 and CO2, solutions with precisely known molal fractions of CO=3, HCO-3, and dissolved CO2 were prepared. The apparent fractionation factor between gaseous CO2 and total carbon in the ...
An improved method of trapping of gases on charcoal is described. The novel construction of the ''cold finger'' and electronic controller ensure reduced operation time and power consumption and increased flexibility of the ...