Analysis of particulate matters in mainstream cigarette smoke using electronic nose

A method of analyzing particulate matters in mainstream cigarette smoke by electronic nose was developed. Conditions were optimized. Classifying models of different style cigarettes and statistical quality control models for same brand cigarette were established. Their reliabilities were validated. Results showed that better repeatability can be obtained when cigarettes were smoked according to specific puff number. The optimum conditions were as follows: storage time controlled within 12 hours, delay time of 1800s, injection volume of 100 μL, headspace heating at 90℃ by 20 min. The accuracy of established classifying models can be as high as 95%. These quality control models can be used in monthly quality monitoring and even routing maintenance.