FIELD: chemistry.
SUBSTANCE: sensor includes semiconductor nanocrystals (quantum dots), imbedded into a near-wall layer of track pores of polyethylene terephthalate membranes, with the pores remaining empty. If ammonia vapours are present in an air sample, ammonia molecules bind with quantum dot surfaces, which results in decrease of quantum dot luminescence.
EFFECT: invention solves the tasks of increasing sensitivity, accuracy of determination of ammonia vapour concentration, terms of exploitation and simplification of the sensor manufacturing.
5 dwg, 1 ex
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