FIELD: hygiene.
SUBSTANCE: invention relates to monitoring of microbial contamination and can be used in health and public catering. Described is composition to determine whether surface cleared of microbial contamination. Composition contains from 0.001 to 10 wt% of cationic or anionic optical bleaching agent and from 0.001 to 5.0 wt% of complexing agent with opposite charge. Said complexing agent selected from a group consisting of surfactant, modified cellulose, modified guar modified acrylic compounds, modified urethane, polyvinylpyrrolidone and ethoxycarboxyilates.
EFFECT: formulations of fluorescent gel are stable, fluoresce under effect of UV radiation and leave no traces after drying and removal.
20 cl, 12 tbl, 4 ex
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