Cigarette main flume volatile organic compound ingredient determination method

A technology for cigarette mainstream smoke and organic compounds, which is applied in the field of capture and analysis of volatile organic compounds, can solve the problems of cumbersome operation, poor reproducibility, and low sensitivity, and achieve high sensitivity, good measurement repeatability, The effect of easy operation

Inactive Publication Date: 2008-01-16
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the cold solvent collection method has good reproducibility and has been adopted by many tobacco companies and government organizations. However, it is often necessary to c

Method used

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  • Cigarette main flume volatile organic compound ingredient determination method
  • Cigarette main flume volatile organic compound ingredient determination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The balanced and screened cigarettes were smoked with a rotary smoking machine according to the standard conditions specified in YC / T 29-1996, 10 cigarettes were smoked in each experiment, and an XAD-4 adsorption tube 1 and 10ml was connected to the trap. The serial device of the methanol cold solution absorption bottle 2 jointly captures the mainstream flue gas gas phase, wherein the cooling of the solution is realized by placing the absorption bottle in dry ice containing isopropanol, and the temperature is ≤-80 °C.

[0016] After the smoking experiment, remove the smoke collection device. Add 100 μL of 4 mg / l D6-benzene internal standard solution to the cold solvent, shake evenly, and quickly sample for GC-MS analysis. For the XAD-adsorption tube, transfer the adsorbent into a conical flask, add 10 ml methanol solution and 100 μL internal standard solution, shake evenly, and take the upper layer for GC-MS analysis. The sum of the two determinations is the total amou...

Embodiment 2

[0019] A certain brand of cigarette was measured according to the steps described in Example 1 (capturing method 1), and it was connected with an adsorption bottle first and then an adsorption tube (capture method 2), two adsorption tubes in series (capture method 3) and two adsorption tubes. The measurement results of these flue gas capture methods were compared by connecting solvent bottles in series (capture method 4), and the results are shown in the following table:

[0020]

[0021] It can be seen from the data in the table that this technology can better capture important volatile organic compounds in flue gas compared with other capture methods. In addition, the technique is reproducible and simple to operate, making it suitable for the analysis of large batches of samples.

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Abstract

A detection method of volatility organic compound ingredient in cigarette mainstream smoke comprises the following steps: (1) the entrapment of the volatility organic compound in the cigarette mainstream smoke: a XAD-4 absorption tube and a cold solvent are in tandem and entrap the volatility organic compound in the cigarette mainstream smoke; (2) the analysis of smoke sample: absorption material in the absorption tube is transferred into a chromatogram bottle; an extraction liquid and an internal standard are added in the chromatogram bottle and leach the absorption volatility organic compound; the absorption volatility organic compound is directly put into GC-MS to be detected; after the solution in the absorption bottle is added with the internal standard, the solution is directly put into GC-MS to be analyzed and detected; the summation of the amount of leached volatility organic compound and the amount of volatility organic compound in the solution is the total amount of the volatility organic compound in the cigarette mainstream smoke. Compared with the prior method, the method in the invention has more easy operation, only need the XAD-4 absorption tube and a tandem device of a cold solvent bottle and can effectively absorb all the main volatility organic compounds in the cigarette mainstream smoke; furthermore, the method in the invention has the advantages of sound repeatability and sound sensitivity; the method in the invention is also suitable for analysis of samples in large quantities.

Description

technical field [0001] The invention belongs to a new method for capturing and analyzing volatile organic compounds in mainstream cigarette smoke. The method uses XAD adsorption tube and cold solvent to jointly capture the main volatile organic compounds in mainstream smoke, and uses gas chromatography-mass spectrometry (GC-MS) to realize the analysis and determination of these substances in mainstream cigarette smoke. . technical background [0002] The mainstream smoke of cigarettes contains a large amount of volatile organic compounds (VOCs), which are gaseous or liquid at room temperature, generally toxic, have a pungent odor, and are flammable and explosive. Among the 44 harmful components of cigarette smoke listed in Hoffmann's list, there are 6 volatile organic components, namely 1,3-butadiene, isoprene, styrene, benzene, toluene, and acrylonitrile. Benzene is a human carcinogen, and 1,3-butadiene, isoprene, styrene and acrylonitrile are possible human carcinogens. ...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 谢复炜赵阁夏巧玲王昇赵乐
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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