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Cigarette smoke gas phase component analysis method based on DART-MS

A technology for cigarette smoke and gas phase components, which is applied to the analysis of materials, material analysis through electromagnetic means, and measurement devices, which can solve the problems of cumbersome, aging composition of smoke, and time-consuming analysis steps, and achieve the effect of short analysis time

Pending Publication Date: 2021-11-26
知健生物分子研究院(南京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods involve complex processes such as sampling, trapping, separation, and derivatization. The analysis steps are time-consuming and cumbersome, and will lead to flue gas aging and composition changes.

Method used

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  • Cigarette smoke gas phase component analysis method based on DART-MS
  • Cigarette smoke gas phase component analysis method based on DART-MS
  • Cigarette smoke gas phase component analysis method based on DART-MS

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Example 1: A DART-MS-based cigarette smoke gas phase component analysis device

[0051] Such as figure 1 As shown, the present embodiment provides a cigarette smoke gas phase component analysis device based on DART-MS. The cigarette smoke gas phase component analysis device includes a cigarette clamping device 1, a smoke suction device 3, a connecting device 5, The first three-way valve 2, the mass spectrometer 7 and the ion source 6; the three ports of the first three-way valve 2 communicate with the cigarette clamping device 1, the smoke suction device 3 and the connecting device 5 respectively; The cigarette clamping device 1 is used to clamp the cigarette 11; the smoke suction device 3 is used to collect the cigarette smoke, so that the cigarette smoke generated at the cigarette clamping device 1 reaches the smoke suction device through the first three-way valve 2 The connection device 5 is used to communicate with the first three-way valve 2, the mass spectrometer...

Embodiment 2

[0052] Example 2: A DART-MS-based analysis method for gas phase components of cigarette smoke

[0053] This embodiment provides a DART-MS-based analysis method for gas phase components of cigarette smoke. The method uses the device for gas phase component analysis of cigarette smoke in Example 1, comprising the following steps:

[0054] Step 1: Open the first two-way valve 41, close the second two-way valve 42, and use the smoke suction device 3 to suck air into the inside of the smoke suction device 3;

[0055] Step 2: Close the first two-way valve 41, open the second two-way valve 42, use the smoke suction device 3 to push the air inside the smoke suction device 3 into the inside of the connection device 5, at this time, at this time, the air The substances in the mixture are ionized and enter the mass spectrometry detection, record the mass spectrometry signal, and obtain the air background spectrum;

[0056] Step 3: install the smoke suction device 3, and use the cigarett...

experiment example 1

[0064] Experimental Example 1: Analysis of gas phase components of cigarette smoke

[0065] This experimental example provides an analysis experiment of the gas phase components of cigarette smoke. The experimental process is as follows:

[0066] Using the method of Example 2, standard cigarettes 3R4F (purchased from the University of Kentucky, Kentucky, U.S.), flue-cured tobacco type or Virginia type cigarettes (Virginia), mixed type cigarettes (blended) and small cigar type (cigarillo) cigarettes were carried out respectively. Gas phase composition analysis experiment. Except for standard cigarettes 3R4F, other types of cigarettes can be purchased from supermarkets. The experimental results are as follows:

[0067] figure 2 It is the DART-MS total ion flux diagram of 7 consecutive puffs of standard cigarette 3R4F. Depend on figure 2 It can be seen that the signal of each single-puff smoke has a high peak and sharp flow pattern, and the background baseline is very low ...

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Abstract

The invention relates to a cigarette smoke gas phase component analysis method based on DART-MS, and belongs to the technical field of gas phase analysis. The invention provides a cigarette smoke gas phase component analysis device and method based on DART-MS. The device comprises a cigarette clamping device, a smoke suction device, a connecting device, a first three-way valve, a mass spectrometer and an ion source, and three ports of the first three-way valve are communicated with the cigarette clamping device, the smoke suction device and the connecting device respectively; the connecting device is used for communicating the first three-way valve, the mass spectrometer and the ion source; according to the method, the device is used for performing gas phase component analysis on the cigarette smoke; the device and the method are both based on DART-MS, so that the device and the method can be used for realizing real-time and online direct analysis on the gas phase components of the cigarette smoke, reflecting the real composition and dynamic change of the gas phase components of the cigarette smoke and exploring the real harmful components of the cigarette smoke entering a human body.

Description

technical field [0001] The invention relates to a method for analyzing gas phase components of cigarette smoke based on DART-MS, and belongs to the technical field of gas phase analysis. Background technique [0002] Cigarette smoke contains strong carcinogens such as polycyclic aromatic hydrocarbons, nitrosamines, volatile carbonyl compounds and volatile phenols, which are extremely harmful to human health. Therefore, it is extremely important to develop efficient analytical methods to explore the material components contained in cigarette smoke to study and understand the impact of smoking on human health. [0003] Cigarette mainstream smoke (MSS), the smoke produced after passing through the filter during puffing, enters the smoker directly. MSS consists of two parts: particle phase and gas phase. The Cambridge filter traps particulate matter larger than 0.1 μm, and the gas phase is the part that passes through the filter. Single puff is the process of a human body tak...

Claims

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Application Information

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IPC IPC(8): G01N27/626
CPCG01N27/626
Inventor 李红丽耿欣陈大勇
Owner 知健生物分子研究院(南京)有限公司
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