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. 2021 Mar 11;59(3):846–858. doi: 10.1007/s13197-021-05057-w

Fig. 1.

Fig. 1

Typical block diagram of an e-nose system (1. Synthetic air cylinder, 2. Blower, 3. Air inlet valve, 4. Closed sample container, 5. Sample, 6. Volatiles, 7. Sampling valve, 8. Sensor array chamber, 9. Data processing and pattern recognition, 10. Purge valve, 11. Purge outlet)