METHOD AND DEVICE FOR IDENTIFICATION OF ANALYSED SUBSTANCE Russian patent published in 2014 - IPC G01N33/52 

FIELD: chemistry.

SUBSTANCE: invention relates to analytical chemistry, in particular to aspects, related to methods of the nonenzymatic determination of the presence or a quantity of carbohydrates in a sample, and describes a method, device and set for the sample analysis to determine the presence or a quantity of an analysed substance, in particular a carbohydrate, in particular, sugar, in the sample with the application of fabric. The method includes the application of the sample on a synthetic fabric; chemical modification of the said carbohydrate, present in the sample, with an oxidising agent with a sufficient oxidising potential in order to cleave the carbohydrate between two hydroxyl groups; inactivation of the said oxidising agent, which would prevent the identification of the chemically modified carbohydrate; identification of the presence or the quantity of the said chemically modified carbohydrate by means of a copper-containing compound to obtain the visible change of colour.

EFFECT: invention can be used for the determination of the presence of a carbohydrate on the surface to indicate the surface contamination, in particular contamination with a substance, promoting the microbial growth.

20 cl, 2 dwg, 7 tbl, 4 ex