Three-stage trapping method of cigarette mainstream smoke for smoke toxicity detection

A technology for the detection of mainstream smoke and toxicity of cigarettes, applied in sampling devices and other directions, can solve problems such as undiscovered public reports, and achieve the effect of improving accuracy and scientificity, improving comprehensiveness and capture efficiency, and increasing capture level.
CN101825528AActive Publication Date: 2010-09-08YUNNAN RES INST OF TOBACCO SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YUNNAN RES INST OF TOBACCO SCI
Publication Date
2010-09-08

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Abstract

The invention relates to a three-stage trapping method of cigarette mainstream smoke for smoke toxicity detection, which belongs to the technical field of cigarette smoke safety evaluation. The three-stage trapping method comprises the following steps: first-stage trapping: Cambridge filter trapping, second-stage trapping: PBS (polybutadiene styrene) solution trapping and third-stage trapping: organic solvent trapping, wherein in the second-stage trapping of the cigarette mainstream smoke, the PBS solution the pH value of which is 7.4 is adopted to trap the water-soluble components of the gas phase matter of the mainstream smoke, and in the third-stage trapping of the cigarette mainstream smoke, 70 percent of glycerol is adopted to trap the organic phase components of the gas phase matter of the mainstream smoke. The invention has the advantages of improving the trapping grade of the cigarette mainstream smoke, increasing the trapping comprehensiveness and the trapping efficiency of the smoke, promoting the accuracy and the scientificity of the smoke toxicity detection and the like.
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Description

Technical field:

[0001] The invention relates to a three-stage trapping method for cigarette mainstream smoke used for smoke toxicity detection, and belongs to the technical field of cigarette smoke safety evaluation. Background technique:

[0002] The safety evaluation of cigarettes and tobacco additives aims to improve the quality and level of cigarettes and be responsible to consumers. Cigarette mainstream smoke capture methods include Cambridge filter, electrostatic deposition, jet impingement, cold trap, solid adsorption and solvent capture. Among them, Cambridge filter trapping and solvent trapping are widely used, and the trapping effect is ideal. Cambridge filters are usually used to capture the particulate phase of mainstream cigarette smoke; solution traps are often used to capture the gaseous phase of mainstream smoke.

[0003] At present, the capture of cigarette mainstream smoke in international practice usually adopts the second-level capture method, that is,...

Claims

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