Babich O.O. 1
Razumnikova I.S. 1
Mitrohin P.V. 1
1 Limited liability company «Innovative and research center»
Functional characteristics and consumer properties of biosensors on the basis of Langmuir-Blodgett films for definition of biologically active compounds are studied: L-carnitine, cianocobalamine, dihydrotachysterol, pyridoxine, taurine, hydroxyproline, esterase. It is established that duration of definition by the developed biosensors makes from 1,0 to 3,0 minutes, and operational stability – from 60 to 180 days. Tests of efficiency of application of developed biosensors at definition of biologically active compounds are carried out: L-carnitine, cianocobalamine, dihydrotachysterol, pyridoxine, taurine, hydroxyproline, esterase. It is shown that the minimum limit of definition of biologically active compounds by developed biosensors is 0,01 mm, maximum - 10,00 mm. Sensitivity of the developed biosensors makes from 20 to 30 mA/M·cm2, an error of measurement of concentration of anolyte – from 2,0 to 5,0 %, reproducibility of a signal – from 2,0 to 2,5%.