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Method for determining carbonyl compound in mainstream smoke of cigarette

A technology for cigarette mainstream smoke and carbonyl compounds, which is applied to measuring devices, instruments, scientific instruments, etc., can solve the problems of smoking machine suction channel pollution, large suction resistance of cigarette suction channel, long analysis time, etc., and achieve reduction The effect of reducing loss, improving efficiency, and simple operation

Active Publication Date: 2015-01-07
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the solution absorption method is that the suction resistance of the cigarette suction channel is relatively large, making it difficult for cigarette smoking to meet the requirements of standard smoking conditions
The State Tobacco Monopoly Administration issued the YC / T 254-2008 industry standard in 2008, which uses a Cambridge filter treated with an acidic solution of 2,4-dinitrophenylhydrazine to capture volatile carbonyls in mainstream cigarette smoke. The compound eliminates the shortcomings of the solution absorption method, but this method requires pretreatment of the Cambridge filter, which has disadvantages such as long analysis time and large amount of reagents
The experiment needs to derivatize the glass fiber filter one day in advance, and this method will seriously pollute the suction channel of the smoking machine

Method used

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  • Method for determining carbonyl compound in mainstream smoke of cigarette
  • Method for determining carbonyl compound in mainstream smoke of cigarette
  • Method for determining carbonyl compound in mainstream smoke of cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1 The linear smoking machine trapping device with adsorption tube of the present invention

[0067] The linear smoking machine trapping device with adsorption tube of the present invention is as figure 1 shown. The trapping device includes: adsorption tube 1, artificial lip holder 2, artificial lip 3, trap front cover 5, trap rear cover 7 and adsorption tube holder 8, and the artificial lip 3 is arranged on the Inside the artificial lip holder 2, the front end of the catcher front cover 5 is inserted into the artificial lip holder 2 and abuts against the artificial lip holder, the catcher front cover 5 The rear end has a first notch, the front end of the trap rear cover 7 is accommodated in the first notch, the rear end of the trap rear cover 7 has a second notch, and the adsorption tube holds 8 is accommodated in the first notch, the adsorption tube holder 8 is provided with a hollow cavity, the adsorption tube 1 is located in the hollow cavity, the insi...

Embodiment 2

[0075] The assay method of carbonyl compounds in cigarette mainstream smoke of the present invention comprises the following steps:

[0076] 1. Preparation of derivatization reagent: Take 50g DNPH and add it to 800mL acetonitrile, heat and reflux until DNPH is completely dissolved, transfer it to a beaker, seal it away from light and cool it naturally, let stand overnight, DNPH crystals are suction filtered, washed with acetonitrile, and dried in vacuum Then transfer to a brown bottle and seal it, then store it away from light and low temperature;

[0077] 2. Preparation of derivatization reagent: Weigh 1 g of purified DNPH solid and add it to about 25 mL of phosphoric acid, shake to dissolve, dilute to 50 mL with acetonitrile, and mix the mixed solution evenly under magnetic stirring environment.

[0078]3. Capture of carbonyl compounds in the mainstream smoke of cigarettes: The adsorption material is loaded between the filter of the smoking machine and the suction syringe to...

Embodiment 3

[0088] The well-balanced cigarettes were smoked under the ISO standard conditions (puffing volume 35mL, puffing frequency 60 seconds, puffing duration 2 seconds), 1 cigarette per experiment, and 300 mg of carbon molecular sieve adsorption material (The specific surface area is 1100m 2 / g, particle diameter is 20 / 45 mesh) is packed in the adsorption tube 1 of embodiment 1, and traps the carbonyl compound in the mainstream smoke of cigarette, and the loading amount is 300mg / cigarette.

[0089] After the cigarette is smoked, put the adsorbent material into a 15mL glass bottle with a stopper and seal it, then carefully add 4.0mL of methanol and stir to mix. Afterwards, 0.5 mL of the above solution was placed in a 5.0 mL volumetric flask, and 200 μL of DNPH solution was added and diluted to 5.0 mL with acetonitrile for derivatization reaction. It was analyzed by liquid chromatography (diode array detector), and the chromatogram was obtained as follows: image 3 shown. Three cigar...

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Abstract

The invention relates to a method for determining a carbonyl compound in mainstream smoke of a cigarette. The method comprises the following steps: (1) filling an adsorption material for capturing the carbonyl compound into an adsorption pipe of a smoking machine capturing device with an adsorption pipe, and capturing the carbonyl compound in the main stream smoke of the cigarette; (2) transferring the adsorption material with the carbonyl compound in step (1) into an analysis container, adding a desorption solution to desorb the adsorption material, adding a 2, 4-dinitrophenylhydrazine (DNPH) solution to derivatizate the adsorption material to obtain a desorption solution containing the carbonyl compound; and (3) detecting the desorption solution containing the carbonyl compound obtained in the step (2) by utilizing a liquid phase chromatography. The method has advantages of simplicity and rapidness in operation, high sensitivity and good repeatability.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical testing of cigarette mainstream smoke, and in particular relates to a method for measuring carbonyl compounds in cigarette mainstream smoke. Background technique [0002] Carbonyl compounds are an important class of harmful components in mainstream cigarette smoke. They are included in the list of 46 harmful components of the Canadian government and the list of controlled components recommended by the WHO "Tobacco Product Regulation Research Group", so carbonyl compounds in cigarette smoke can be accurately determined It is of great significance for the evaluation of the hazards of cigarettes. A commonly used cigarette smoke collection method is to directly capture carbonyl compounds with a derivatization solution under acidic conditions. However, under acidic conditions, the hydrazone derivatives of aldehydes (especially acrolein) are unstable and prone to secondary reactions that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 胡清源张洪非庞永强罗彦波姜兴益李雪朱风鹏陈再根侯宏卫
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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