Online collection ionization device and method for cigarette smoke

Abstract

The invention discloses an online collection ionization device and method for cigarette smoke. The online collection ionization device for cigarette smoke comprises a cigarette holder, a suction module, a suction gas path, a sampling gas path, an ionization cavity and an ionization module, the cigarette holder is communicated with the suction module through the suction gas path, and the sampling gas path is communicated with the suction gas path, and the ionization module is communicated with the sampling gas path through the ionization cavity. According to the invention, online collection of fresh flue gas is realized; smoke collection and ionization processes are organically fused and simultaneously carried out, so that a powerful tool is provided for real-time online analysis of cigarette smoke; through the design of a plurality of components between the suction gas path and the sampling gas path, the suction capacity of the suction module is not influenced while smoke is collected, the accuracy and stability of puff-by-puff suction can be ensured, and the sample introduction and ionization stability of the ionization cavity can be ensured; the device is high in universality and can be adapted to various instruments or equipment for separation analysis based on the ionic state.

Description

Technical field[0001]The present invention relates to the field of cigarette flue gas analysis, in particular a cigarette smoke online acquisition ionization device and method.Background technique[0002]Collotable smoke as consumer's most direct object, its quality is an important factor in determining the quality of cigarettes. Strengthening cigarette smoke analysis, not only analyzing the quality of cigarettes, but also has important significance for guiding cigarette process formulations, processing and research and development.[0003]At present, the standard analysis method of cigarette flue gas analysis is based on off-line analysis, and the specific implementation is usually: collecting the particle portion of the cigarette smoke and the gas phase portion, respectively, by a certain sample. The pretreatment means obtains a suitable analysis test solution, and finally via conventional analysis techniques such as GC, LC, GC-MS, LC-MS. The formation of cigarette smoke is a dynamic ...

AI Technical Summary

Problems solved by technology

Although the above two patents realize the online analysis of cigarette smoke, they cannot take into account the accuracy of the smoking capacity of the smoking machine and the quantitative accuracy of the mass spectrometry analysis of the smoke. The reason is that the mass spectrometer has its own vacuum system, whether through the quartz There is a constant suction flow in the capillary, through the flue gas collection bottle, and in the mass spectrometry system. In the absence of gas compensation, this constant suction flow will inevitably affect the accuracy of the suction capacity of the hood.

On the other hand, the accuracy of mass spectrometry is determined by the stability of the sample injection. The process of smoking by the smoking machine will cause changes in the air pressure inside and outside the mass spectrometer inlet, which will affect the injection volume of the mass spectrometer to a certain extent. stability

Images