FIELD: detection of analytes in medium.
SUBSTANCE: system of detection of analyte in sample has sensitive member on base of diffraction, which sensitive member has substrate, and device for analysis composed of light source intended for application of light to diffraction-base device where diffraction-based sensitive member diffracts light in case if analyte is present and in case when it doesn't diffract light and analyte is absent. System also has aid for measurement of quantity of diffracted light, aid for transforming results of measurement to measure quantity of diffracted light into result pointing at presence of analyte in sample and aid for informing user on presence of analyte in sample.
EFFECT: improved precision; widened ability of application; comfort at use.
29 cl, 7 dwg
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