VAPORIZATION INJECTOR

摘要

The invention relates to a vaporization injector for gas chromatography analysis instruments, of the type comprising a vaporization chamber, heated or which may be heated, with a longitudinally elongated shape, a device for hermetically inserting the needle of a syringe containing the sample (substance to be analysed and solvent) into the chamber, a connection for feeding a carrier gas into the chamber and a gas chromatography capillary column with an upstream end open inside the vaporization chamber. In order to allow the vaporization of large sample volumes, the upstream end of the gas -chromatography column and the injection point of the sample into the vaporization chamber are both arranged adjacent to one of the longitudinal ends of the said vaporization chamber and the feed connection for the carrier gas is located adjacent to the other end (Fig. 2).