Fig. 5From: Real-time and on-line monitoring of ethanol fermentation process by viable cell sensor and electronic noseRelationship between the ethanol concentrations determined by electronic nose and by HPLC. a Off-line determination of ethanol concentrations in shake-flask fermentation by electronic nose and by HPLC. b On-line determination of ethanol concentrations in a 5-L bioreactor fermentation by electronic nose and by HPLCBack to article page