Infrared oven and GC-MS based method and infrared oven and GC-MS based device for on-line analysis of simulated combustion of cigarettes

An analysis method and infrared furnace technology, applied in the field of on-line analysis, can solve the problem of inability to use a large sample volume and so on
CN101692076AInactive Publication Date: 2010-04-07ZHENGZHOU TOBACCO RES INST OF CNTC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHENGZHOU TOBACCO RES INST OF CNTC
Publication Date
2010-04-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an infrared oven and GC-MS based method and an infrared oven and GC-MS based device for on-line analysis of simulated combustion of cigarettes and is characterized in that the method comprises: a cigarette sample is put under a condition of inert gas or synthetic air to realize the control of the oxygen content in the cracking atmosphere by using a gas flowmeter; a focused infrared oven is used as a heating device for cracking cigarette, and under the control of a programmable temperature rise controller, the infrared oven can control the temperature change in the simulating process, realize quick temperature rise cracking of the gram-class cigarette samples and simulate temperature rise conditions of the combustion of cigarettes; the cracking products obtained at different time periods can be selectively delivered to a PTV sample injection opening by a six-way valve and condensed and enriched by liquid nitrogen, the enriched cracking products are separated by the gas chromatography GC and then delivered to the mass spectrometry for quantitative and qualitative analysis; and by simulating the conditions of the combustion of cigarettes, the cracking experiments of the gram-class cigarette samples at different temperature-rise speeds and with different oxygen contents are carried out.
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Description

technical field

[0001] The invention relates to an on-line analysis method and device which connect a focused infrared furnace, a six-way valve and a gas chromatography-mass spectrometry instrument. The device can realize pyrolysis of gram-level tobacco samples, simulate cigarette smoking conditions, and online gas chromatography-mass spectrometry analysis of smoking products. Background technique

[0002] Cigarette smoke is mainly produced by distillation and pyrolysis of tobacco and its additives during the smoking process of cigarettes. Therefore, using pyrolysis technology to crack cigarette samples, simulate the smoking process of cigarettes, and analyze and evaluate the cracked products produced is a widely used experimental method for evaluating the source of smoke components and flavor transfer. The on-line pyrolysis analysis devices used in previous literatures are mainly commercial thermal crackers and gas chromatography-mass spectrometry. The heating rate of the...

Claims

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