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The Electronic Nose:

The Electronic Nose:. A Multivariate Approach. The tasks of this report:. To inform on chemometrics studies in Voronezh To describe the results of one research project. Igor V. Aristov Department of Analytical Chemistry Voronezh State University. Tatyana A. Kuchmenko

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The Electronic Nose:

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  1. The Electronic Nose: A Multivariate Approach

  2. The tasks of this report: • To inform on chemometrics studies in Voronezh • To describe the results of one research project

  3. Igor V. Aristov Department of Analytical Chemistry Voronezh State University Tatyana A. Kuchmenko Department of Analytical Chemistry Voronezh State Technological Academy Authors:

  4. Scientific interests • Analytical Chemistry • Electrochemistry • Separation methods • Applied Statistics

  5. The Problem We want to distinguish vapors of chemical substances in air using a cross-selectivity multisensor detector

  6. The “Electronic Nose” Unit for gas analysis with many cross-selectivity sensors.

  7. Input GAS The “Electronic Nose”: a scheme

  8. Experimental equipment

  9. Scheme of Analytical Information

  10. Sorbates Benzol Aniline o-Methyl Aniline m-Methyl Aniline p-Methyl Aniline Analytical signals DF; frequency difference a; capacity t0.5; time of half sorption Electronic Nose with 14 cross-selectivity sensors

  11. Aniline Benzol п- Methyl Aniline м- Methyl Aniline о-Methyl Aniline Vapor Print TM

  12. Aniline Benzol м- Methyl Aniline п- Methyl Aniline о-Methyl Aniline Vapor Print TM

  13. Discriminant Analysis

  14. Discriminant Analysis

  15. Classification

  16. Scheffe test (t0.5)

  17. Scheffe test (DF)

  18. Scheffe test (a)

  19. In The Nearest Future • Optimization of sensors number • Multivariate calibration

  20. The End

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