Electronic Tongue ElectronicTongue.com
December, 2006
Second Announcement of ISOEN 2007 is available now at Official Page.
For more information please visit conference's Official Web Site.

December, 5th, 2006
A list of our partners is expanded.

December, 5th, 2006
New literature references added.

June, 26th, 2006
You can have a look at our research projects and relevant references.
Follow the link.

April, 4th, 2006
We developed a new ion-selective sensor, selective to nitrite ions (NO2-). All characteristics of a new sensor you can find in the table.

March, 31th, 2006
The date of ISOEN 2007 is defined. The conference will be held from 3 to 5 of May, 2007. For more info please, visit the Official Site.

March, 30th, 2006
Await soon (in 2-5 days) some new photos of working systems.

March, 9th, 2006
Our site is available in Pocket PC mode now, still with no pictures, but with full-text content. You can find it at http://pda.electronictongue.com

December, 1st, 2005
We will organize ISOEN Conference in May, 2007. Please, visit our Official Page!

May, 17th, 2005
Two NEW sensors were added! Their characteristics you can see at the bottom of the table with PVC-based sensors. All kinds of sensors are negotiable!

June, 30th, 2005
Now you can ask your questions to us in our forum! We'll respond you as soon as possible!

July, 29th, 2005
Our Ion-selective electrodes have got a Pattern Approval Certificate of Measuring Instruments which is registered in the State Register of Measuring Instruments of Russian Federation (Certificate №13763-05). A copy of this certificate will appear here soon!

December, 15th, 2005
Four of our new papers added to References page.

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All rights reserved, owned by Andrey V. Legin, Laboratory of chemical sensors, St.-Petersburg State University, 1995-2005
Joint R&D projects that have been successfully carried out together with the following partners:


1. Procter and Gamble - recognition and evaluation of coffee (individual sorts and commercial blends) through the analysis of coffee brews using the ET;

Reference: A. Legin, A. Rudnitskaya, B. Seleznev, Yu. Vlasov, Recognition of liquid and flesh food using an "electronic tongue", International Journal of Food Science and Technology, 2002, Vol.37, pp.375-385

2. Pepsico - distinguishing various sorts of soft drinks; taste evaluation of soft drinks; evaluation of the quality of ingredients

Reference: A. Legin, B. Seleznev, A. Rudnitskaya, G. Roy, Yu. Vlasov, P. Milne, Electronic tongue for the quality control of sodas and their ingredients, in the Proc. of 9th Int. Meeting on Chemical Sensors, July 7-10 2002, Boston, USA, p. 392.

3. GlaxoSmithKline - flavour evaluation, masking effect assessment of New Chemical Entities and drugs

Reference: A. Legin, A. Rudnitskaya, D. Clapham, B. Seleznev, K. Lord, Yu. Vlasov, Electronic tongue for pharmaceutical analytics - quantification of tastes and masking effects, Analytical and Bioanalytical Chemistry, 2004, Vol.380, pp.36-45

4. Martell - recognition and assessment of eau-de-vie and cognac

Reference: A. Legin, A. Rudnitskaya, B. Seleznev and Yu. Vlasov, Electronic tongue for quality assessment of ethanol, vodka and eau-de-vie, Analytica Chimica Acta, 2005, Vol. 534, Issue 1, p.p. 129-135.

5. Arla Foods - following-up of fermentation sequences in food production

Reference: K. Esbensen, D. Kirsanov, A. Legin, A. Rudnitskaya, J. Mortensen, J. Pedersen, L. Vognsen, S. Makarychev-Mikhailov, Yu. Vlasov Fermentation monitoring using multisensor systems: feasibility study of the electronic tongue Analytical and Bioanalytical Chemistry, 2004, Vol. 378, pp.391-395

6. PBI Dansensor - development of sensors and arrays for carbonate monitoring

Reference: S. Makarychev-Mikhailov, O. Goryacheva, J. Mortensen, A. Legin, S. Levitchev, Y. Vlasov Carbonate Sensors Based on 4-Hexyltrifluoroacetophenone Modified by Acceptor Substituents in Phenyl Ring. Electroanalysis, 2003, V.15, No.15-16, pp.1291-1296

7. dK-Teknik - monitoring of effluents (heavy metals absorbed by aqueous solvent) from waste incineration plants

Reference: J. Mortensen, K. Hjuler, A. Legin, A. Rudnitskaya, A. Ipatov, Yu. Vlasov, A multi-sensor array flow-injection system for continuous monitoring of heavy metals in the incinerator emission, in Proc. of CEM99 (Control Emission Monitoring) Conference, 6-9 Sept. 1999, Warwick University, Coventry, UK

8. Novozymes (2004-2005) - no papers so far

Research centres, organizations and institutes

1. Research Centre Rossendorf (Germany) - application of the ET to the assessment of the water from abandoned uranium mines

Reference: A.V. Legin, B.L. Seleznev, A.M. Rudnitskaya, Yu.G. Vlasov, S.V. Tverdokhlebov, B. Mack, A. Abraham, T. Arnold, L. Baraniak, H. Nitsche, Multisensor system for determination of iron(II), iron(III), uranium(VI) and uranium(IV) in complex solutions, Czechoslovak Journal of Physics, 1999, V.49(S1), p.679-685

2. Research Centre Juelich (Germany) - development of thin film chemical sensors for heavy metal detection with the help of PLD

Reference: Schoning M., Schmidt C., Schubert J., Zander W., Mester S., Kordos P., Luth H., Legin A., Seleznev B., Vlasov Yu. The film sensors on the basis of chalcogenide glass materials prepared by pulsed laser deposition technique, Sensors&Actuators B, 2000, 68, p.254-259

3. INRA - National Agricultural Research Institute (France) - evaluation of flavour and quality of tomatoes; recognition and classification of onions and shallots

References: A. Rudnitskaya, A. Legin, C. Salles, P Mielle, Tomato varieties evaluation: electronic tongue vs. chemical analysis and sensory panel, in Artificial Chemical Sensing: Olfaction and the Electronic Nose (ISOEN 2001), Sensor Division, (Eds. J.R. Stetter and W.R. Penrose), The Electrochemical Society Inc. USA, Proceedings Volume 2001-15, ISBN 1-56677-321-0, (2001)

A. Legin, A. Rudnitskaya, B. Seleznev, G. Sparfel, C. Dore Electronic tongue distinguishes onions and shallots. Acta Horticulturae (ISHS) 2004, Vol. 634, pp.183-191

4. US Department of the Navy - multicomponent analysis of pollutants in the seawater

Reference: A. Legin, A. Rudnitskaya, B. Seleznev, D. Kirsanov Chemical sensors and arrays for simultaneous activity detection of several heavy metal ions at low ppb level In Proc. of Pittcon 2004, Chicago, Illinois, USA, March 7 - 12, 2004

5. Italian Enological Institute (Italy) - multidimensional qualitative and quantitative analysis and flavour evaluation of wines by the ET

Reference: A. Legin, A. Rudnitskaya, L. Lvova, Yu. Vlasov, C. Di Natale, A. D'Amico Evaluation of Italian wine by the electronic tongue: recognition, quantitative analysis and correlation with human sensory perception. Anal.Chim.Acta, 2003, 484, pp.33-44

6. Instituto dos Vinhos do Douro e Porto (Portugal) - assessment and evaluation of the age of the Port wine

Reference: A. Rudnitskaya, I. Delgadillo, A. Legin, S.M. Rocha, A-M. Da Costa, T. Simoes Prediction of the Port wine age using an electronic tongue Chemometrics and Intelligent Laboratory Systems, 2006, to be published

7. Silsoe Research Institute (England) - detection of mastitis in milk; following-up of biotechnological processes

Reference: C. Turner, A. Rudnitskaya, A.Legin Monitoring batch fermentation with an electronic tongue. Journal of Biotechnology, 2003, V.103, p.87-91

8. Khlopin Radium Institute (Russia) - development of sensors and sensor arrays for analysis of spent nuclear fuel

Reference: А.V. Legin, D.O. Kirsanov, V.A.Babain, A.V. Borovoy, R.S.Herbst Cross-sensitive rare-earth metal sensors based on bidentate neutral organophosphorus compounds and chlorinated cobalt dicarbollide Anal.Chim.Acta, 2006, accepted


1. University of Rome "Tor Vergata" (Italy) - quantitative and qualitative analysis of natural and drinking waters, wines and medical solutions

References: A. Legin, A. Rudnitskaya, Y.Vlasov, C.Di Natale, A. Mantini, E. Mazzone, A. Bearzotti, A.D'Amico, An electronic tongue distinguishes different mineral waters, Alta Frequenza (Italian), 1999, V.10, p.1-3

Legin A.V., Rudnitskaya A.M., Vlasov Yu.G., Di Natale C., D'Amico A., The features of the electronic tongue in comparison with characteristics of the discrete ion-selective sensors, Sensors and Actuators B, 1999, V.58, pp.464-468

Yu. Vlasov, A. Legin, A. Rudnitskaya, C. Di Natale, A. D'Amico Non-specific sensor arrays ("electronic tongue") for chemical analysis of liquids, Pure and Applied Chemistry, 2005, v.77, N 11, p.1966-1983

2. Technical University of Braunschweig (Germany) - quantification of multiple water pollutants by the ET

Reference: A. Rudnitskaya, A. Ehlert, A. Legin, Yu. Vlasov, S. Buttgenbach, Multisensor system on the basis of an array of non-specific chemical sensors and artificial neural networks for determination of inorganic pollutants in model groundwater, Talanta, 2001, V. 55, Iss. 2, pp.425-431

3. Roskilde University (Denmark) - development of flow-injection multisensor system for environmental monitoring; research of novel chemical sensors

References: J. Mortensen, A. Legin, A. Ipatov, A. Rudnitskaya, Yu. Vlasov, K. Hjuler, A flow-injection system based on chalcogenide glass sensors for determination of heavy metals, Analytica Chimica Acta, 2000, V.403, N.1-2, p.273-277

A. Legin, S. Makarychev-Mikhailov, D. Kirsanov, J. Mortensen, Yu. Vlasov Solvent polymeric membranes based on tridodecylmethylammonium chloride studied by potentiometry and electrochemical impedance spectroscopy Anal.Chim.Acta, 2004, Vol 514/1, pp 107-113

A. Legin, S. Makarychev-Mikhailov, J. Mortensen, Yu. Vlasov Potentiometric and impedance studies of membranes based on anion-exchanger and lipophilic inert electrolyte ETH 500. Electrochimica Acta 2004, Vol.49, pp.5203-5207

4. Linkoping University (Sweden) - multisensor detection of bacterial contamination

Reference: C. Soderstrom, A. Rudnitskaya, A. Legin, C. Krantz-Rulcker, Differentiation of Four Aspergillus Species and One Zygosaccharomyces with Two Electronic Tongues Based on Different Measurement Techniques, Journal of Biotechnology, 2005, V.119, Is.3, pp.. 300-308

5. University of Aalborg in Esbjerg (Denmark) - multidimensional monitoring of biotechnological media using the ET

Reference: A. Legin, D. Kirsanov, A. Rudnitskaya, J.J.L. Iversen, B. Seleznev, K. H. Esbensen, J. Mortensen, L. P. Houmoller, Yu. Vlasov, Multicomponent analysis of fermentation growth media using the electronic tongue (ET), Talanta, 2004, V.64, pp.766-772

6. University of Aveiro (Portugal) - evaluation of quality of cork; application of the ET to the assessment of wines

Reference: A. Rudnitskaya, I. Delgadillo, S. M. Rocha, A-M. Costa,, A. Legin, Quality evaluation of cork from Quercus suber l. by the electronic tongue, Analytica Chimica Acta, 2006, v.563, iss.1&2, p.315-318

7. Agricultural University (Russia) - multidimensional evaluation of meat and liver quality from pigs and cows by the ET

Reference: A. Legin, A. Rudnitskaya, B. Seleznev, Yu. Vlasov, V. Velikzhanin, Electronic tongue for recognition of flesh food, in Artificial Chemical Sensing: Olfaction and the Electronic Nose (ISOEN 2001), Sensor Division, (Eds. J.R. Stetter and W.R. Penrose), The Electrochemical Society Inc. USA, Proceedings Volume 2001-15, ISBN 1-56677-321-0, (2001)

8. University of Taegu (South Korea) - development of sensors and sensor systems for evaluation of different foodstuffs

Reference: L. Lvova, S. S. Kim, A. Legin, Yu. Vlasov, G. S. Chaa , H. Nam, All-solid-state electronic tongue and its application for beverage analysis, Analytica Chimica Acta, 2002, Vol. 468 Iss. 2, pp 303-314

9. Catholic University of Leuven (Belgium) - assessment of fruits and vegetables by the ET and various other analytical methods

Reference: A. Rudnitskaya, D. Kirsanov, A. Legin, K. Beullens, J. Lammertyn, B. M. Nicolai, J. Irudayaraj, Analysis of apples varieties - comparison of Electronic Tongue with different analytical techniques, Sensors and Actuators B, 2006, V. 116, N1-2, p.23-28