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Method for measuring volatile fragrance components of electronic cigarette

A technology of aroma components and determination methods, which is applied in the field of analysis and determination, can solve the problems of lack of comprehensive understanding, lack of quality control of electronic cigarettes, and lack of determination and analysis methods of volatile aroma components of electronic cigarettes, so as to save analysis costs, The effect of low detection limit and high sensitivity

Active Publication Date: 2014-10-29
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, e-cigarettes still lack relevant quality control, especially the components, component releases, sensory evaluation, and safety of e-cigarettes after atomization. There is still a lack of comprehensive understanding, and there is no relevant determination of volatile aroma components , reports on analytical methods

Method used

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  • Method for measuring volatile fragrance components of electronic cigarette
  • Method for measuring volatile fragrance components of electronic cigarette
  • Method for measuring volatile fragrance components of electronic cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Take 2 mL of e-cigarette liquid of a certain brand and place it in a 20 mL headspace sampling bottle, add 4 mL of dichloromethane (chromatographically pure) and mix well, then seal the mouth of the headspace sampling bottle with a bottle cap;

[0024] 2) Insert the solid-phase microextraction needle with the fiber tip into the gas chromatographic inlet, and perform aging treatment on the fiber tip for 25 minutes at 260°C, with a carrier gas volume flow rate of 1.0mL / min; the fiber tip is 65 μm dimethyl Silicone / divinylbenzene (PDMS / DVB);

[0025] 3) Insert the solid-phase microextraction needle with the fiber head into the upper space of the headspace sampling bottle through the bottle cap, and carry out the headspace solid-phase analysis on the volatile aroma components of the e-cigarette liquid in step 1) under the following conditions: Micro-extraction: keep at 80°C for 5min, absorb at 80°C for 30min, and rotate at 250rpm;

[0026] 4) Desorb the substance extract...

Embodiment 2

[0034] 1) Take a certain brand of disposable electronic cigarette, cut the electronic cigarette vertically, use tweezers to completely take out the glass wool soaked in the liquid in the atomizer (the amount of liquid is 1 gram), put it into a 25mL conical flask, Add 10 mL of dichloromethane (chromatographically pure), cap the bottle, and conduct ultrasonic extraction at 25°C for 30 minutes, then pipette 6 mL of the extraction solution into a 20 mL headspace sampling bottle, and seal the mouth of the headspace sampling bottle with the bottle cap;

[0035] 2) Insert the solid-phase microextraction needle with the fiber tip into the gas chromatographic inlet, and perform aging treatment on the fiber tip for 30 minutes at 270°C, with a carrier gas volume flow rate of 1.0mL / min; the fiber tip is 100μm polydimethylformaldehyde polysiloxane (PDMS);

[0036] 3) Insert the solid phase microextraction needle with the fiber head into the space above the headspace sampling bottle through...

Embodiment 3

[0045] 1) Take 3mL of a certain brand of e-cigarette liquid into a 30mL headspace sampling bottle, add 6mL of n-hexane (chromatographically pure) and mix well, then seal the mouth of the headspace sampling bottle with a bottle cap;

[0046] 2) Insert the solid-phase microextraction needle with the fiber tip into the gas chromatographic inlet, and perform aging treatment on the fiber tip for 30 minutes at 260°C, with a carrier gas volume flow rate of 1.0mL / min; the fiber tip is a 50μm divinyl Benzene / carboxyethyl / polydimethylsiloxane (DVB / CAR / PDMS);

[0047] 3) insert the solid-phase microextraction needle with fiber head into the space above the headspace bottle through the bottle cap, and carry out headspace solid-phase microextraction to the volatile aroma components of the extraction solution of step 1) under the following conditions: 100 Keep at ℃ for 4 minutes, adsorb at 100℃ for 10 minutes, and rotate at 250rpm;

[0048] 4) The extracted substance is desorbed at the gas...

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Abstract

The invention relates to a method for measuring volatile fragrance components of an electronic cigarette. The method comprises the steps of adding electronic cigarette liquid into a headspace sample injection bottle, adding a solvent into the headspace sample injection bottle for uniform mixing, and sealing a bottleneck of the headspace sample injection bottle through a bottle cover; performing aging treatment on a solid-phase microextraction needle fiber head at a gas chromatography sample injection opening; performing headspace solid-phase microextratcion on the electronic cigarette liquid; performing desorption on substances obtained by extraction at the gas chromatography sample injection opening; qualitatively and quantitatively analyzing the desorbed substances through a gas chromatography-mass spectrometer. According to the method, the loss or the decomposition of the volatile fragrance components of the electronic cigarette can be effectively avoided; multiple volatile fragrance components can be simultaneously analyzed; the method is high in repetitiveness, high in sensitivity and easy to operate; the interference caused by base body components and the solvent can be avoided; the method has a certain advantage in detecting the volatile fragrance components.

Description

technical field [0001] The invention relates to a measurement method, in particular to a method for measuring and analyzing the volatile aroma components of electronic cigarettes, and belongs to the technical field of analysis and measurement. technical background [0002] New tobacco products are strategic products of the tobacco industry and an important direction for the future development of the tobacco industry. E-cigarette is a new type of tobacco product that has developed most rapidly in recent years. It uses electric heating to atomize the liquid in the e-cigarette into a mixed gas containing propylene glycol / nicotine for smokers to inhale. This heating atomization method of electronic cigarettes not only replaces the burning of traditional cigarettes, but also greatly reduces the harmful substances produced by burning. The hazards of passive smoking caused by second-hand smoke to non-smokers. Domestic and foreign e-cigarette markets have experienced explosive gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 杨继杨柳赵伟段沅杏孙志勇巩效伟陈永宽秦云华
Owner CHINA TOBACCO YUNNAN IND
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