FIELD: physics.
SUBSTANCE: planar microdoser for gas chromatography is performed on a flat aluminium plate, on the surface of which the channels for gas flow and the fixed volume dose are manufactured by microfilling. The plate is also fitted with three electrically operated pneumatic distributor 3/2, channel sealing flat glass provided with an adhesive. Furthermore, planar microdoser comprises a pneumatic pressure repeater in the carrier gas and sample gas lines.
EFFECT: increase precision is introduced for analysis of small sample volumes, providing direct input test sample splitless in the capillary, and in micro-settling exclusion column and gas pressure surge at the time of sample introduction.
2 cl, 1 dwg, 1 tbl
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