Transfer unit for analysis devices

摘要

The invention relates to a transfer unit for analysis devices, containing a tube-shaped assembly which can be heated by an electric heater in a programmed manner, a tube (6) which is arranged in the sample chamber (18) and into which the end of a gas chromatographic separating column can be inserted at the end of said tube, and means for introducing carrier gas into the tube (6), said transfer unit being characterized in that a temperature sensor (8) is arranged in the ring chamber (5) between the inner wall of the assembly and the evaporator tube (6). The transfer unit can be a sample introduction device for a gas chromatograph having a sample introduction head (18), and the assembly can be a sample introduction chamber in which an evaporator tube is provided, wherein the end of a gas chromatographic separating column can be inserted into the end facing away from the sample introduction head (18).

主权项

1. Transfer unit for analytic instruments, comprising
a tubular, cartridge-type assembly group in the form of a sampling chamber with an inner wall, an electric heater for heating said assembly group according to a program, a gas chromatographic separating column having two ends, a liner inside said sampling chamber adapted to receive one of said ends of said gas chromatographic separating column, said liner designed in such a way that an annular space with an open outlet end is formed between said inner wall of said sampling chamber and said liner, and wherein said liner has an outside and an inside, said inside connected to said annular space through said open outlet end, means for inserting carrier gas into the liner, wherein a temperature sensor is arranged in said annular space, wherein, said assembly group has a cylindrical inner tube and said heater has the form of a heating coil wound on said cylindrical inner tube, and wherein said assembly group has an outer tube mounted around said heating coil which is tightly connected to said inner tube and said heating coil by a diameter reducing method.