Patent ID: 6494939
Filing Date: 2002-12-17
Classification: G01N

Abstract:
An injector liner for use with a gas chromatography split injector, said injector liner comprising:a substantially cylindrical outer liner member; an inner liner member disposed within the outer liner member, said inner liner member having substantially cylindrical upper and lower portions and a constriction therebetween, the constriction having an inner surface having an inner diameter smaller than a diameter of inner surfaces of the upper and lower portions, the constriction being adapted to receive in sealing engagement therewith a chromatographic column passing through the lower portion and being adapted to receive a transfer line passing through the upper portion such that the transfer line is in fluid communication with the chromatographic column and with a space defined by an outer surface of the inner liner member and an inner surface of the outer liner member; and wherein said inner liner member further comprises an outwardly flaring flange portion extending from an upper edge of the upper portion to facilitate insertion of the transfer line therethrough, the flange portion having an outer diameter greater than a diameter of the inner surface of the outer liner member, and being spaced from the outer liner member such that the transfer line is in fluid communication with the space defined by an outer surface of the inner liner member and an inner surface of the outer liner member.