Patent ID: 7189579

Claim:
A method for measuring release rates of contaminants in at least one of a fast mode and a slow release mode comprising the steps of: introducing at least one volatile liquid sample into a transparent reactor vessel comprising sealable means for introducing said at least one volatile liquid sample into said transparent reactor vessel and sealing said at least one volatile liquid sample in said transparent reactor vessel, at least one sorbent contained within said transparent reactor vessel, and a separation means for maintaining a separation between said at least one sorbent and said at least one volatile liquid sample in said transparent reactor vessel, whereby substantially zero headspace is maintained within said transparent reactor vessel; passing at least one solvent soluble constituent present in said at least one volatile liquid sample through said separation means, resulting in sorption of said at least one solvent soluble constituent by said at least one sorbent; removing said at least one solvent soluble constituent from said at least one sorbent through said separation means; and measuring the amount of said at least one soluble constituent removed from said at least one sorbent, and then determining the release rates of contaminants comprising of said at least one solvent soluble constituent in at least one of a fast release mode and a slow release mode.