FIELD: chemistry.
SUBSTANCE: novel immunoreactive contains haptene (derivative of atrazine and mercaptopropionic acid) with protein and gold for detecting pesticides. A MRAB-protein-gold conjugate competes with a defined element for a finite number of binding centres provided by antibodies to atrizine deposited on a nitrocellulose membrane. The range of dynamic concentrations for standard atrazine solutions exhibits linear inhibition (reduction of colour intensity) from 10 ppb to 1 ppm atrazine in water samples.
EFFECT: conjugate has long duration of storage with high stability.
26 cl, 2 ex, 2 dwg
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