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Method for measuring sixteen polycyclic aromatic hydrocarbons in cigarette liquid of electronic cigarette

A technology of e-cigarette liquid and polycyclic aromatic hydrocarbons, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve cumbersome and time-consuming problems, and achieve the effects of saving organic solvents, simplifying extraction steps, and simplifying sample pretreatment

Active Publication Date: 2015-07-08
ZHENGZHOU TOBACCO RES INST OF CNTC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the pretreatments for the analysis and detection of PAHs use Solid-Phase Extraction. The process is divided into activation, rinsing, and elution, which is tedious and time-consuming.

Method used

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  • Method for measuring sixteen polycyclic aromatic hydrocarbons in cigarette liquid of electronic cigarette
  • Method for measuring sixteen polycyclic aromatic hydrocarbons in cigarette liquid of electronic cigarette

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Experimental program
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Effect test

Embodiment 1

[0039] 1. Extraction and concentration of the sample to be tested: Accurately weigh about 0.1 g of e-cigarette liquid into a conical flask, add D 8 - Nye, D 10 -Fee, D 12 -Benzo[a]pyrene internal standard and 0.9 mL water, after shaking for 2 min, all were transferred to the solid-phase supported liquid-liquid extraction column, pressurized to make the sample solution to be tested fully diffuse in the column packing, let it stand for 5 min, and added Elute with 5 mL of cyclohexane, collect the eluate, concentrate to about 0.2 mL, and detect with GC-MS;

[0040] 2. GC-MS analysis conditions: Inlet temperature: 280°C; Injection volume: 1μL; Splitless injection; Carrier gas: Helium, constant flow rate 1mL / min; Chromatographic column: DB-5MS, specification 30m× 0.25mm×0.25μm; temperature program: keep at 60°C for 1min, then rise to 110°C at a rate of 20°C / min, then rise to 280°C at a rate of 5°C / min, and hold for 10min. Ionization method: EI; transfer line temperature: 280°C; i...

Embodiment 2

[0045] 1. Extraction and concentration of the sample to be tested: Accurately weigh about 3 g of e-cigarette liquid into a conical flask, add D 8 - Nye, D 10 -Fee, D 12 -Benzo[a]pyrene internal standard and 2 mL of water, after oscillating for 5 min, all were transferred to a solid-phase supported liquid-liquid extraction column, pressurized so that the sample solution to be tested was fully diffused in the column packing, stood still for 5 min, and added 24 mL of cyclohexane was used to elute, the eluate was collected, concentrated to about 1 mL, and detected by GC-MS;

[0046] 2. GC-MS analysis conditions: Inlet temperature: 280°C; Injection volume: 1μL; Splitless injection; Carrier gas: Helium, constant flow rate 1mL / min; Chromatographic column: DB-5MS, specification 30m× 0.25mm×0.25μm; temperature program: keep at 60°C for 1min, then rise to 110°C at a rate of 20°C / min, then rise to 280°C at a rate of 5°C / min, and hold for 10min. Ionization method: EI; transfer line tem...

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Abstract

The invention provides a method for measuring sixteen polycyclic aromatic hydrocarbons in cigarette liquid of an electronic cigarette. The method is characterized in that a small amount of water is added to a cigarette liquid sample of the electronic cigarette, a mixture vibrates evenly, so that the mixture is fully dispersed in a kieselguhr solid phase supporting liquid-liquid extraction column, cyclohexane is used for extraction, and after extraction liquid is concentrated, the sixteen polycyclic aromatic hydrocarbons in the cigarette liquid of the electronic cigarette are measured through a GC-MS. Compared with a commonly-used polycyclic aromatic hydrocarbon analysis method, the method for measuring the sixteen polycyclic aromatic hydrocarbons has the advantages that sample pretreatment is greatly simplified, the use amount of organic solvents is saved, experiment repeatability is good, the experiment recovery rate is high, and the method is suitable for treating samples automatically on a large scale.

Description

technical field [0001] The invention belongs to the technical field of measuring electronic cigarette liquid, in particular to a method for measuring 16 kinds of polycyclic aromatic hydrocarbons in electronic cigarette liquid. The method is to add a small amount of water to the e-cigarette liquid sample, oscillate evenly, fully disperse in the diatomite solid-phase support liquid-liquid extraction column, extract with cyclohexane, concentrate the extract, and use gas chromatography-mass spectrometry The determination of 16 polycyclic aromatic hydrocarbons in e-cigarette liquid was realized by GC-MS. Background technique [0002] Electronic cigarette (electrical cigarette, e-cigarette), also known as electronic nicotine delivery systems (ENDS), is an electronic device that delivers nicotine to the respiratory system by means of electronic heating. new way. E-cigarette liquid is mainly composed of nicotine, propylene glycol, glycerin or polyethylene glycol, and a small amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 秦亚琼黄飞刘金霞王超王晓瑜贾云祯蔡君兰余晶晶丁丽刘绍锋张晓兵刘惠民
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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