Patent ID: 6223590
Filing Date: 2001-05-01
Classification: G01N

Abstract:
A method for analyzing a liquid-phase sample of component(s) of specific molar concentrations which comprises the steps, in sequence, of:a) passing said liquid-phase sample into a pressurized container, the pressure being sufficient to maintain the sample in the liquid phase;b) permitting said liquid sample to leave said pressurized container and pass through a pressure regulator adjusted to permit controlled expansion of said liquid-phase sample to a vapor-phase sample having substantially the same molar concentrations as in the original liquid-phase sample;c) passing said vapor phase sample from step (b) through a second pressure-regulator to convert the pressure of said vapor phase sample to a standardized pressure; andd) analyzing said vapor phase sample at the standardized pressure whereby the specific molar concentrations of the components in the original liquid-phase sample are determined with substantial accuracy.