Smoking apparatus capable of implementing continuous one-time sampling of main fume gas phase object

Abstract

The invention relates to a smoke sucking device which can realize continuous single port sampling of gas-phase substances in mainstream smoke, and is characterized in that the smoking device comprises a cigarette-piece clamper, a smoke accumulation drum chamber provided with an exhaust piston, and a suction pump which are connected in sequence through a pipeline, wherein the smoke accumulation drum chamber communicates with the cigarette-piece clamper and a suction pipeline of the suction pump through an inlet valve and a suction valve respectively; a smoke outlet pipe controlled by an outlet pipe is arranged at the top end of the smoke accumulation drum chamber. The smoke outlet pipe can be divided into two following categories of structures: (1) a U-shaped pipe structure which can be directly inserted in a collecting bottle; (2) a needle-type sampling pipe structure for direct sample introduction. The device has the advantages that the structure is simple, and the operation is simplified; the process for preparing samples during the analysis of the gas-phase part of the mainstream smoke can be greatly simplified; not only the collection to the gas-phase part of the mainstream smoke can be realized, but also the continuous collection to the gas-phase part of the mainstream smoke can be realized; the device can also be used as a sampler; furthermore, the mainstream smoke is directly injected in an analysis instrument for analysis.

Description

Technical field [0001] The invention belongs to the field of tobacco. Specifically, it relates to a smoking device that can realize continuous single-port sampling of the gas phase of mainstream smoke. Background technique [0002] The smoke produced by cigarette combustion is directly related to cigarette consumers. Therefore, the analysis and research on the mainstream smoke components of cigarettes has always been valued by tobacco analysts. The mainstream cigarette smoke is traditionally divided into mainstream smoke particulate matter and mainstream smoke vapor phase through Cambridge filters. The mainstream smoke particulate matter refers to the part of the smoke component that is intercepted by the Cambridge filter; the mainstream smoke vapor phase refers to the part of the smoke component that can pass through the Cambridge filter but is not intercepted. This part of the composition is mostly small molecules Volatile components are difficult to collect and analyze. At pre...

AI Technical Summary

Problems solved by technology

This method is generally cumbersome. In order to effectively capture the gas phase of mainstream smoke, it is necessary to find a suitable capture solution.

Usually, it is difficult for a single capture solution to completely capture the gas phase components of mainstream smoke at the same time. Therefore, different solutions are often used to capture components with different chemical properties in the gas phase of mainstream smoke, for example, 2, 5 -Dinitrophenylhydrazine can only capture aldehydes and ketones in the gas phase of mainstream smoke [J.Chromatogr.A 2004, 1027: 25.; Chinese Tobacco Journal 2006, 12: 14.]

Therefore, the method of solvent capture is difficult to simultaneously analyze and study the gas phase components in mainstream smoke.

In addition, there have been studies [Environ.Toxicol.2006, 21:47] saying that the method of solvent capture often introduces unnecessary interference, which makes the analysis results biased

[0003] In order to overcome the shortcomings of the solvent capture method in the analysis of the gas phase of the mainstream smoke, foreign researchers have proposed online sampling and instant analysis methods, but some of these methods are carried out by refitting large-scale instruments [Anal.Chem.2005, 77: 2288.; J.Agric.Food Chem.2007, 55: 2055], it is difficult to meet the daily analysis needs of the laboratory; ] and then carry out chromatographic analysis, the method process is loaded down with trivial details, operability is not strong; There is also the method that adopts direct continuous sampling to carry out chromatographic analysis [Beitr. Analysis poses great difficulties

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