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Method for simultaneously determining release amounts of nicotine and inorganic elements in electronic cigarette aerosol

A technology of inorganic elements and nicotine, which is applied in the field of analysis and detection, can solve problems such as the upper limit of the number of suction ports, and achieve the effects of improving accuracy, simple operation, and saving the amount of smoke liquid used

Active Publication Date: 2021-03-16
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using the French standard requires two puffs to complete the determination of the release of nicotine and inorganic elements. At the same time, due to the upper limit of the load of the 44mm filter, under the suction capacity of 55mL, there is suction when a single Cambridge filter captures mouth limit

Method used

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  • Method for simultaneously determining release amounts of nicotine and inorganic elements in electronic cigarette aerosol
  • Method for simultaneously determining release amounts of nicotine and inorganic elements in electronic cigarette aerosol
  • Method for simultaneously determining release amounts of nicotine and inorganic elements in electronic cigarette aerosol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1 Capture efficiency of different absorbents

[0068] The determination of the content of nicotine and inorganic elements in the electronic cigarette aerosol in this embodiment is the determination of the content of nicotine and inorganic elements in the refill type electronic cigarette aerosol, including the following steps:

[0069] Absorbent: n-heptadecane in methanol, n-heptadecane in ethanol, and n-heptadecane in isopropanol at a concentration of 0.3 mg / mL

[0070] Step 1: Add 20 mL of trapping solution containing 0.3 mg / mL n-heptadecane into the absorption bottle.

[0071] Step 2: Follow the attached figure 1 Connect the pipeline to the electronic cigarette smoking machine, and set the parameters according to the smoking machine: the suction volume is 55mL, the suction time is 3s, the suction interval is 30s, and the number of suction ports is 20 for smoking.

[0072] Step 3: After the suction, take 1 mL of the solution from the two-stage absorption bo...

Embodiment 2

[0080] Example 2 Comparison of detection limit and repeatability between the method of the present invention and the prior art method

[0081] The method of the present invention: the method for determining the content of nicotine and inorganic elements in the electronic cigarette aerosol according to the method described in Example 1.

[0082] Method of the prior art: French standard method (NF XP D90-300-1-2015)

[0083] In this example, the method of the present invention and the method of the prior art are used to measure nicotine and inorganic elements.

[0084] 1. Determination of detection limit

[0085] The detection limit of nicotine and the detection limit of inorganic elements are determined as follows:

[0086] Detection limit of nicotine: The detection limit of nicotine analysis method is 3 times of the chromatogram noise of blank sample, which is 0.0003mg / mL.

[0087] The detection limit of inorganic elements: in the state of not igniting the electronic ciga...

Embodiment 3

[0094] Example 3 The consistency of the method of the present invention and the prior art method and the comparison of the maximum number of nicotine puffs

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Abstract

The invention relates to a method for simultaneously determining release amounts of nicotine and inorganic elements in electronic cigarette aerosol. The method comprises the following steps: (1) smoking to obtain electronic cigarette aerosol; (2) capturing nicotine and inorganic elements in the electronic cigarette aerosol; and (3) detecting nicotine and inorganic elements in the electronic cigarette aerosol. The method provided by the invention has the characteristics of high sensitivity, rapidness, effectiveness and cost saving.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection, and relates to a method for measuring smoke emissions in novel tobacco products, in particular to a method for simultaneously measuring the released amounts of nicotine and inorganic elements in electronic cigarette aerosols. Background technique [0002] As a type of new tobacco products, electronic cigarettes have a wide market both at home and abroad, and have developed rapidly abroad in recent years. The amount of nicotine released in e-cigarette aerosols is an important indicator to meet consumer demand, and inorganic elements are a type of harmful release substances in e-cigarette aerosols, both of which have received widespread attention. [0003] The French electronic cigarette standard (NF XP D90-300-1-2015Electronic cigarettes and e-liquids-part1: requirements and test methods for electronic cigarette) has clear test requirements for both, and gives the corresponding test...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/88
CPCG01N30/06G01N30/88
Inventor 朱风鹏姜兴益李翔宇庞永强张洪非罗彦波侯宏卫马涛闫瑞波
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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