FIELD: process engineering.
SUBSTANCE: proposed invention can be used for absorption and desorption of gas sample. This preconcentrator comprises nanocomplexes of metals with carbon nanotubes. Note here that metal in said nanocomplexes with carbon nanotubes represents one or more metals selected from the group consisting of cobalt, copper, nickel, titanium, silver, iron, tungsten and their aqueous salts or hydrates. This preconcentrator can comprises unit of specimens with said nanocomplexes and gas sample feed hole, dried gas feed source and gas analyser system connected with said preconcentrator. Besides, it can comprise channel switchover valve for selective gas sample feed, dried gas feed source and gas analyser system with sample concentration unit and gas absorption and desorption from sample control unit.
EFFECT: higher efficiency of concentration of gases.
13 cl, 8 dwg
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