Patent ID: 8925369
Filing Date: 2015-01-06
Classification: G01N

Abstract:
1. A Device for the preparation of samples for gas chromatography, comprising a carrier gas supply a tubular liner adapted to be flushed with carrier gas from said carrier gas supply, and having an inside, a lower and an upper end portion; a controllably heated sample reservoir; an active material provided in said tubular liner; an outer tube coaxially arranged around said liner, whereby a space is formed between said liner and said outer tube, said space being in contact with said lower end portion of the liner; a split outlet provided at said outer tube; a carrier gas connection provided at said outer tube for feeding carrier gas into said space; a column connection above said active material for connecting a gas chromatographic column; and control means for controlling a flow of said carrier gas in a first setting from said inside of said liner through said active material, and and wherein said lower end portion of said liner is adapted to be controllably heated; said sample reservoir is placed inside said liner or is adapted to be inserted into said liner together with a sample; said active material is provided in said controllably heated, lower end portion of said liner; said column connection for connecting a gas chromatographic column is provided above said active material; said flow of said carrier gas is flowed in the first setting from said active material into said space and from there to said split outlet; and said flow of said carrier gas in the second setting flows in the opposite direction through said space and afterwards through said active material.