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Home Sensors Іnstrument for Biochemical Analysis of Aqueous Solutions

Іnstrument for Biochemical Analysis of Aqueous Solutions

Description

Instrument operation is based on simultaneous potentiometric examination of variety of ion-sensitive membranes connected to the surface of solid-state transducers and forming of multidimensional response signal toward an analyzed medium by the “electronic tongue” principle. For recognition of species in solution an array of electrochemical sensors based on ion-selective field-effect transistors with pH-sensitive layer of silicon nitride is used. Operation of multisensor consists in measurement of surface potential change at the electrolyte – sensitive membrane – transistor gate interface simultaneously for each sensor element of the array with subsequent processing of the measured data by special mathematical methods and forming of the unique chemical image of analyzed substance.

Basic technical characteristics:

  • Number of channels –––––––––––––––––––––––– 2 (2x6);
  • Flow-system volume ––––––––––––––––––––––– 200 μ1;
  • Single measurement duration –––––––––––––––– 0.1 sec;
  • Working temperature range ––––––––––––––––– 0-40 оС;
  • Time needed for biochemical analysis ––––––––– <10 min;
  • Automatic analyte injection at flow speed of –––– 5..200 μ1/min;
  • Serial interface ––––––––––––––––––––––––––– RS 232;
  • Software platform ––––––––––––––––––––––––– Win 9Х, DOS;
  • Power supply –––––––––––––––––––––––––––– 2 V / 0.2A.

Innovative Aspect and Main Advantages

Intellectualv property: А.А.Soldatkin, Е.А.Nazarenko, А.S.Pavluchenko, А.L.Kukla, V.M.Archipova, S.V.Dzyadevich, А.P.Soldatkin, А.V.Еl’ska. Patent of Ukraine on the useful model “Multibiosensor for determination of toxic substances concentrations in aqueous solutions”, UA№27284 G01N33/02, submit. 08.06.2007, publ. 25.10.2007, Bull.№ 17.

Areas of Application

Express analysis of aqueous solutions biochemistry and recognition of particular chemical species, including the toxic ones (heavy metal ions, chlorine and organophosphorus pesticides). The device can be used for analysis of waste and technical waters, food products (vegetables, fruit, drinks) on general toxicity and content of separate toxic matters (formaldehyde, hypochloride, cyanides, nitrates), agricultural products on content of pesticides, herbicides.


Stage of Development

Pilot samples. Exploitation of the devices in the Institutes of Biochemistry and Molecular Biology and Genetics of NAS of Ukraine for the biochemical analysis of matters.

Contact Details

V. Lashkaryov Institute of Semiconductors Physics of the National Academy of Sciences of Ukraine
Contact person: Alexander L. Kukla
Address: 41, Prospect Nauki, 03028, Kiev, Ukraine
Tel./Fax: (+38 044) 525 2332
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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