Method for testing particle size distribution of electronic smoke liquid additive in smoke aerosol

An electronic cigarette liquid and particle size distribution technology, applied in the field of electronic cigarettes, can solve problems such as the distribution of additives in electronic cigarette liquid that have not been reported, and achieve the effects of wide application range, convenient operation and accurate results.

Pending Publication Date: 2018-03-20
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is no report on the distribution of e-cigarette liquid additives in aerosols of different particle sizes. The research and development of the determination method for the distribution of

Method used

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  • Method for testing particle size distribution of electronic smoke liquid additive in smoke aerosol
  • Method for testing particle size distribution of electronic smoke liquid additive in smoke aerosol
  • Method for testing particle size distribution of electronic smoke liquid additive in smoke aerosol

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Propylene glycol is hygroscopic and has a slightly sweet taste. It is one of the basic components of e-cigarette oil. It is mainly used as a carrier of flavor and can also enhance the taste of e-liquid, which has an important impact on the state of e-cigarette smoke and the taste of smoking. Add 90% propylene glycol to the e-cigarette liquid, and use a single-channel smoking machine to smoke cigarettes. Dilute (9000 times dilution) and import into ELPI, use the pre-equipped 12-stage filter membrane on ELPI to capture cigarette smoke aerosol, capture 10 smoke aerosols; then place each filter membrane in 12 10mL Into the glass bottle, add 20.0 mL of aqueous solution in sequence, ultrasonically extract for 10 minutes, take it off, filter the extraction solution through a 0.22 μm aqueous phase micro-membrane, add 1,2-propanediol-D6 internal standard solution, and then measure it by GC-MS to obtain propylene glycol The concentration of propylene glycol can be drawn according...

Embodiment 2

[0032] Glycerol is highly hygroscopic and has a certain sweetness. Its main function in e-cigarette liquid is to generate mist. Add 20% glycerol to the e-cigarette liquid, smoke cigarettes with a single-hole smoking machine, the suction volume is 100mL, the suction duration is 0.6s, the suction interval is 100 s, and the suction curve is square; The flue gas is diluted (dilution factor 5000 times) and introduced into ELPI, and the 12-stage filter membrane pre-equipped on ELPI is used to capture cigarette smoke aerosol, and 20 smoke aerosols are collected; then each filter membrane is placed separately In 12 10mL glass bottles, add 45.0 mL methanol solution in turn, ultrasonically extract for 20min, take it off, filter the extraction solution through a 0.22μm organic phase micromembrane, add deuterated glycerol-D5 internal standard solution, and then GC-MS Determination is carried out to obtain the concentration of glycerol, so as to draw the distribution map of glycerol accord...

Embodiment 3

[0037]Macrostigmatrienone is an important flavor component in e-cigarette liquid. It has a sweet herbal flavor and a spicy base rhyme, which has an important impact on the taste of e-cigarettes. Add 0.008% macrostigmatrienone to the e-cigarette liquid, and use a single-channel smoking machine to smoke cigarettes, with a suction volume of 250 mL, a suction duration of 10 s, and a puff interval of 10 s. The puff curve is Bell-shaped; the flue gas is diluted (2500 times dilution) and introduced into the ELPI, and the 12-stage filter membrane pre-equipped on the ELPI is used to capture the cigarette smoke aerosol, and 300 puffs of the smoke aerosol are collected; then each stage filter The membranes were respectively placed in 12 10mL glass bottles, and 2.0 mL of dichloromethane solution was added sequentially, ultrasonically extracted for 4 minutes, and removed. The extraction solution was filtered through a 0.22 μm organic phase micromembrane, and deuterated hydrocinnamic acid-D5...

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Abstract

The invention relates to a method for testing particle size distribution of an electronic cigarette smoke liquid additive in smoke aerosol and belongs to the field of electronic cigarette research. Specifically, the method comprises the following steps: putting an additive into electronic cigarette leaves, smoking in an expected smoking mode, capturing smoke aerosol of different particle sizes ofthe electronic smoke by using an electronic low-pressure impactor (ELPI), treating, testing the additive by using a gas chromatography-mass spectrometer (GC-MS), thereby obtaining distribution situations of the additive in smoke of different particle sizes. Therefore, technical supports are provided for electronic cigarette liquid formula study, sensory quality improvement of electronic cigarettesmoke, and the like.

Description

technical field [0001] The invention belongs to the technical field of electronic cigarettes, in particular to a method for measuring the particle size distribution of electronic cigarette liquid additives in smoke aerosol. Background technique [0002] E-cigarettes generate smoke by heating the smoke oil and atomizing it, so that the smoke liquid with glycerin, propylene glycol, etc. Sol. At present, relevant researchers have shown that the particle sizes of smoke aerosols produced by different e-cigarette liquid formulations are different, and the chemical composition of aerosols with different particle sizes is also different. Aerosol particles of different particle sizes enter the respiratory system and deposit in different parts. For example, most of the large-size aerosol particles remain in the mouth and nasal cavity, and small-size aerosols remain in the lungs. The chemical composition makes up the sensory difference of smoke, which in turn affects the sensory qual...

Claims

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Application Information

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IPC IPC(8): G01N15/02G01N30/02G01N30/72G01N30/06G01N30/14
CPCG01N15/02G01N30/02G01N30/06G01N30/14G01N30/72G01N2030/062G01N2030/146
Inventor 司晓喜刘强刘志华朱瑞芝向能军王洪波汤建国张凤梅朱琴杨国荣苏钟璧侯春
Owner CHINA TOBACCO YUNNAN IND
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