FIELD: chemistry.
SUBSTANCE: chemically modified planar optical sensor comprises, arranged in series, a substrate based on a dielectric chemically inert material, a nanopatterned coating with thickness of 1-10 mcm based on noble metal nanoparticles with a size of 20-90 nm, and a transparent microporous chitosan film, which is chemically modified with a π-acceptor compound, capable of detecting an analyte and chemically bonding therewith by forming a charge-transfer complex. The invention also discloses a method of producing said optical sensor and a method of analysing polyaromatic heterocyclic sulphur-containing compounds using said sensor.
EFFECT: high sensitivity, selectivity and rapidness of analysis.
13 cl, 4 dwg, 4 tbl
| Title | Year | Author | Number |
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