Short description This invention represents analytic chemistry of organic compounds and is used for identification and sanitary-and-epidemiologic control of harmful substances’ content in drinking, natural, sewage waters, as well as in precipitates, soil, plants, and products made of plant raw. The procedure of phenol content determination in sample proceeds in four stages: - Removal of humic substances from water sample on aluminum oxide column.
- Phenol chemical modification – treatment of humic substances-free water sample with molecular bromine.
- Extraction concentration of 2,4,6-tribromophenol by liquid extraction method.
- Extract analysis by gas chromatography method.
Main preferences of new phenol determination method: - true analysis results with no dependence on qualitative and quantitative sample composition;
- full removal of background components (coarse, fine and colloid particles);
- no formation of resistant emulsions after extraction concentration treatment which hamper the following gas-chromatography determination;
The procedure of aniline content determination in sample proceeds in three stages: - Aniline chemical modification – water sample treatment with bromine in presence of glycine.
- Extraction concentration of 2,4,6-tribromoaniline by liquid extraction method.
- Extract analysis by gas chromatography method.
Main preferences of new aniline determination method: - lower aniline detection limit in water: 0.1 microgram/dm3; prototype—4 microgram/dm3;
- less stages of analytic cycle;
- lower water sample volume (25 cm3; prototype—100–1000 cm3);
- less analysis time (15 min; prototype—about 60 min);
- analytic cycle does not include organic extract evaporation distorting the results of aniline qualitative chemical analysis in water.
Samples of practical usage The methods have been tested in real production conditions and are ready for realization. New methods are used in the Ecoanalytical Laboratory of the Institute of Biology while: - quality control of drinking water;
- control of environmental (air, water, soil, vegetation) pollution from timber processing complex;
- control of air, water, soil, vegetation pollution along main oil and gas pipelines;
- environmental monitoring; quality control of agricultural products and food;
- quality control over pulp-and-paper production
- quality control over drug herbs or crude drug for medicine and cosmetology.
Product market geography Komi Republic. Product market volume About 500–1000 thousand roubles per year on the Russian market. Product realization on international markets is possible. DeveloperInstitute of Biology, Komi Scientific Center, Ural Branch, Russian Academy of Sciences (IB Komi SC UB RAS)
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