Scanning device and of the injection of the sample to a chromatograph

摘要

P the invention relates to a scanning device and of the injection of the sample in the column for separation of a chromatograph. / p & & p & this device comprises means for fixing the column for separation and an orifice communicating with a duct for feeding the device by a stream of carrier liquid, it also comprises simultaneously: / p & & p & - dose-fractioning means of the flow of carrier liquid in a main flow and a secondary stream, 1 / p & & p & - means to supply and return the main flow at the input of the column of separation in its entire cross section; / p & & p & - means for supplying simultaneously the secondary flow in order axially to the input of the column for separation and / p & & p & - means for introducing the sample in the secondary flow. / p & & p & the device can be used in particular in the liquid phase chromatography. / p