Patent ID: 8327725

Claim:
A sample collection container used in a supercritical fluid system, the sample collection container comprising: a cylindrical collection vial into which a gas containing a liquid component in the form of aerosol formed by reducing the pressure of a supercritical fluid containing a sample eluted in a separating unit to a pressure close to the atmospheric pressure is injected to collect the sample; and a vial cap attached to an upper end opening of the collection vial, wherein the vial cap includes a discharge hole through which the collection vial is connected to the outer air and an introduction path through which the aerosol-containing gas is externally introduced into the collection vial, wherein a distal end portion of the introduction path has an opening in the vicinity of the inner circumferential surface of the collection vial, the opening oriented in the tangential direction of the inner circumferential surface or/and in a direction downwardly-inclined from the tangential direction, wherein the aerosol-containing gas is injected under the atmospheric pressure, and wherein at least an upper portion of the vial cap is shaped into a truncated cone, and the outer circumferential surface of the upper portion is supported by the end of an upper end opening of the collection vial or a flange provided at the periphery of the vial cap is placed on the end of the upper end opening of the collection vial.