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Method for detecting volatility carbonyl compound in cigarette filter tip with solid phase extraction capillary gas chromatography

A carbonyl compound and gas chromatography technology is applied in the field of detecting volatile and harmful carbonyl compounds in cigarette filters, and achieves the effects of reducing operation requirements, good separation effect and less interference

Inactive Publication Date: 2008-01-30
CHINA TOBACCO HUNAN INDAL CORP
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of quantitative analysis of volatile harmful carbonyl compounds in cigarette filters, and to provide a method for detecting volatile harmful carbonyl compounds in cigarette filters that is simple, fast, sensitive and versatile

Method used

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Experimental program
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Effect test

Embodiment 1

[0011] The Furong King cigarettes are smoked in accordance with the standard conditions stipulated in YC / T29-1996. After smoking the cigarette, remove the filter from the smoking machine and put it into a sealed glass bottle. Cut the 5 filters into 4 equal parts according to the "cross" shape with scissors, place them in a stoppered Erlenmeyer flask, and add 20 mL of 2,4-dinitrobenzonitrile methanol solution acidified with hydrochloric acid (hydrochloric acid and The volume ratio of the 2,4-dinitrophenylhydrazine methanol solution is 9 μL / 100 mL, and the concentration of hydrochloric acid is 36%-38%), and it is placed on a gyroscopic shaker for extraction for 20 minutes. Accurately measure 2 mL of the extract to the Waters C18 solid phase extraction cartridge, elute with 1.0 mL of cyclohexane, collect the eluent, and put it into a 1.5 mL chromatographic injection vial for G C analysis. G C conditions are: Agilent’s DB-5MS capillary column (30m×0.25mm×0.25μm); injection volume is 1...

Embodiment 2

[0013] Using acetonitrile as the solvent, configure a series of mixed standard solutions according to the concentration range of Table 1, and then perform GC analysis and detection under the above experimental conditions, with the peak area of ​​the component on the chromatogram as the response signal, according to 3 parallel measurements of 8 mixed standard solutions As a result, a standard curve of 7 components of formaldehyde, methyl ethyl ketone, acrolein, crotonaldehyde, butyraldehyde, acetone, and acetaldehyde was established. The linear relationship of each standard curve is shown in Table 2. The results in Table 2 show that the response signal has a significant linear correlation with the component concentration; the lowest concentration mixed standard solution is diluted, and the detection limit is obtained according to the signal-to-noise ratio S / N=3. The experimental results are shown in Table 2, which shows The detection limit of the method is low and the method is sen...

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Abstract

The invention relates to a method of detecting evaporable carbonyl compounds in cigarette filters by the solid-phase extraction and capillary gas chromatography. The cigarette filter is added with the Hydrochloric acidified 2,4-dinitrophenylhydrazine solution, for vibrating and extracting, then the extracted liquid is moved to C18 solid phase extraction columnella, eluted by cyclohexane, and the elutriant analyzed by GC, DB-5MS capillary chromato bar is adopted. The volume of sample injection is 1MuL. N2 is used as carrier gas in splitless sample injection. The flow rate of carrier gas is 1-2.5mL / min and the temperature of injection port is 200-250 DEG C. FID detector and the temperature of detector is 250 DEG C. The heating process is to keep initial temperature at 100 DEG C for 0-1min and heating rate at 15-20 DEG C / min, to 200 DEG C for 5min, then the heat rate from 4-8 DEG C / min, heating to 250 DEG C, keeps the temperature under 250 DEG C for 10min, quantitative analysis is according to the peak area. The invention lowers the operation request and can eliminate interference of nontaget compound which can separate formaldehyde, butanone, acrolein, crotonaldehyde, n-butylaldehyde, acetone, acetaldehyde from the cigarette filters effectively and quantitative analysis the seven evaporable carbonyl compounds in the cigarette filter accurately.

Description

Technical field [0001] The invention relates to a method for detecting volatile harmful carbonyl compounds in cigarette filters. Background technique [0002] Volatile carbonyl compounds (including formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, acrolein, crotonaldehyde, acetone, and methyl ethyl ketone) are a class of harmful components with high content in mainstream cigarette smoke, ranging from tens to hundreds Micrograms vary. Among them, most of them are formed from their precursors such as sugar, pectin, protein and possibly triglycerides in tobacco when smoking. These volatile carbonyl compounds, especially formaldehyde, acrolein and crotonaldehyde, have ciliary toxicity. Together with hydrogen cyanide and ammonia, they inhibit the clearance of lung excrement after inhalation, leading to lung diseases. Animal experiments have shown that formaldehyde and acetaldehyde can cause nasal cancer. As a bridge between smokers and mainstream smoke, cigarette filters can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/02
Inventor 吴名剑练文柳胡念念庹苏行
Owner CHINA TOBACCO HUNAN INDAL CORP
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