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Related Experiment Videos

Electronic tongues in flow analysis.

A Gutés1, F Céspedes, M Del Valle

  • 1Sensors & Biosensors Group, Department of Chemistry, Autonomous University of Barcelona, Edifici Cn, 08193 Bellaterra, Barcelona, Spain.

Analytica Chimica Acta
|October 2, 2007
PubMed
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This review details advancements in flow-based analytical systems using sensor arrays and chemometrics, known as electronic tongues. These systems, including flow injection analysis and sequential injection analysis, solve real-world problems.

Area of Science:

  • Analytical Chemistry
  • Sensor Technology

Background:

  • Flow-based analytical systems are evolving with sensor arrays.
  • Complex sensor responses necessitate advanced chemometric treatment.
  • The term "electronic tongue" describes these sophisticated systems.

Purpose of the Study:

  • To review the evolution of flow-based analytical systems.
  • To highlight the role of sensor arrays and chemometrics.
  • To showcase applications in real-world problem-solving.

Main Methods:

  • Review of recent flow-based analytical systems.
  • Focus on sensor array detection schemes.
  • Application of chemometric treatment for data processing.
  • Description of flow injection analysis (FIA) and sequential injection analysis (SIA) methods.

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Main Results:

  • Chronological progress in electronic tongue development is presented.
  • Various research groups' contributions are highlighted.
  • Successful applications in solving practical analytical challenges are demonstrated.

Conclusions:

  • Flow-based systems with sensor arrays and chemometrics offer powerful analytical solutions.
  • Electronic tongues have evolved significantly and are applicable to diverse real-world problems.
  • Continued development promises further advancements in analytical capabilities.