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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
Summary
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.
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.
