Mainstream smoke from the smoking machine was directed into the sampling inlet of the Electrical Low Pressure Impactor (ELPI, Dekati, Ltd., Finland) and the Compact Proton Transfer Reaction-Mass Spectrometer (PTR-MS, Ionicon, Innsbruck, Austria).
A 30-port smoking machine (AMESA Technologies, Geneva, Switzerland) generated smoke from 2R4F filtered research cigarettes (University of Kentucky).
The human puffing behavior data is then averaged and programmed into a smoking machine, and the resulting smoke emissions are measured to determine relative levels of harmful smoke constituents.
In the experiments on the gas phase, the Cambridge filter pad was renewed after each smoked cigarette and, in the CS experiments, the smoking machine was cleaned (with ethanol) after each smoked cigarette, to prevent contamination of subsequent stimuli.
In this study, the QCM successfully determined deposited smoke mass generated from the Borgwaldt RM20S Smoking Machine, but it can easily be adapted to assess smoke mass produced from other commercially available smoking machines.
The aim of this study was to characterise and evaluate the performance of the expanded RM20S eight syringe smoking machine and to assess cigarette smoke through the system.
The reference cigarette 3R4F was obtained from the University of Kentucky (http://www2.ca.uky.edu/refcig/) and smoked on the 30-port carousel smoking machine (SM2000, Philip Morris, Int).
FC and AC cigarettes were smoked under similar conditions in a smoking machine (one 2-second 25 ml. puff per minute down to a 20 mm. butt length).
We standardised smoke production by a custom-made smoking machine, integrated in our SMPS + E (Fig. 1), which consequently standardised the smoke collection and allowed standardisation of the measurements.
MS yields of smoke constituents were determined under 4 different smoking machine conditions.
An automated apparatus was designed and built interfacing a smoking machine with an ICP-MS for smoke generation, collection, injection and analysis.
