Tekmar Company

Tekmar Gmbh

Robert G Westendorf

Thomas B Green

A sample transport device for use in analyzing samples by the headspace analysis technique. The device has a cylindrical platen with counterbored chambers for accepting sample vials. The platen is heated and caused to rotate from a first vial transport point to a sampling point and then back for ejection of the sample vial. Vertical movement of the sample vials is accomplished by use of elevator rods connected to level winding screws mounted below the cylindrical platen.

Analyzer transport device

A sample transport device for use in analyzing samples by the headspace analysis technique. The device has a cylindrical platen with counterbored chambers for accepting sample vials. The platen is heated and caused to rotate from a first vial transport point to a sampling point and then back for ejection of the sample vial. Vertical movement of the sample vials is accomplished by use of elevator rods connected to level winding screws mounted below the cylindrical platen. The device has a mechanism for agitating the vials in the platen chambers during transport to the sampling point.

A method of preparing a volatile sample from a material for gas chromatographic analysis includes the steps of: introducing a vial with the material containing the volatile sample and a headspace therein into a chamber of a platen adapted to transport the vial to a location for removal of at least a portion of the volatile sample for gas chromatographic analysis; heating the material containing the volatile sample while the vial is being transported to the location for removal; agitating the vial while in the chamber to enhance a transport rate of the volatile sample from the material to the headspace of the vial; and introducing a needle to the vial to withdraw at least a portion of the volatile sample from the headspace of the vial.

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Cincinnati, OH, United States of America

Robert G Westendorf