Cigarette mainstream smoke on-line analysis device and method

A technology for mainstream smoke and mainstream smoke of cigarettes is applied in the directions of measuring devices, analysis materials, sampling devices, etc., to achieve the effects of simple structure, simple and fast operation process, and convenient operation.

Active Publication Date: 2013-10-23
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to invent a kind of on-line analysis device and method of cigarette mainstream smoke in view of the deficiencies in existing real-time on-line analysis

Method used

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  • Cigarette mainstream smoke on-line analysis device and method
  • Cigarette mainstream smoke on-line analysis device and method
  • Cigarette mainstream smoke on-line analysis device and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] Online analysis of total and gas-phase components in mainstream cigarette smoke.

[0029] The specific operation steps are as follows:

[0030] In this example, the cigarettes were placed at (22±1)°C and the relative humidity was 60%±2% for 48 hours. Smoking cigarettes under the condition of 60%±5%. After the single-port suction is completed, the mainstream flue gas enters the sampling bottle 1.4, closes the two-way valve 1.3, and opens the gas sample injection valve 1.7. The mainstream flue gas sample is introduced into the mass spectrometer ion source through the mass spectrometer capillary injection port 2.1, and enters after ionization. Mass spectrometer mass analyzer for analytical detection. For the online analysis of the gas phase components of the mainstream smoke, the Cambridge filter is placed in the cigarette holder 1.2. After the cigarette is smoked, the mainstream smoke is filtered by the Cambridge filter and enters the mainstream sm...

Example Embodiment

[0033] Example 2

[0034] On-line analysis of gas-phase components in mainstream smoke from puff-by-puff cigarettes.

[0035] The specific operation steps are as follows:

[0036]In this example, the cigarettes were placed at (22±1)°C and the relative humidity was 60%±2% for 48 hours. Under the condition of 60%±5%, smoke cigarettes under the ISO standard smoking mode (2s per puff, puff volume 35mL, one puff every 60s). After each suction is completed, the mainstream flue gas enters the sampling bottle 1.4, closes the two-way valve 1.3, opens the gas sample injection valve 1.7, and the mainstream flue gas sample is introduced into the mass spectrometer ion source through the mass spectrometer capillary injection port 2.1, and after ionization Enter the mass spectrometer mass analyzer for analysis and detection. After each puff is completed, remove the sample bottle and replace it with a new one, until the end of puffing a cigarette.

[0037] image 3 A full-scan total io...

Example Embodiment

[0039] Example 3

[0040] Qualitative and quantitative analysis of four VOCs including acrylonitrile, crotonaldehyde, benzene and toluene in the gas phase components of mainstream cigarette smoke.

[0041] The specific operation steps are as follows:

[0042] In this example, the cigarettes were placed at (22±1)°C and the relative humidity was 60%±2% for 48 hours. Under the condition of 60%±5%, smoke cigarettes in ISO standard smoking mode (2s per puff, puff volume 35mL, one puff every 60s), and cigarettes are lit with electric igniter. After each suction is completed, the mainstream flue gas enters the sampling bottle 1.4, closes the two-way valve 1.3, opens the gas sample injection valve 1.7, and the mainstream flue gas sample is introduced into the mass spectrometer ion source through the mass spectrometer capillary injection port 2.1, and after ionization Enter the mass analyzer of the mass spectrometer for analysis and detection, and each injection lasts 3 s. After e...

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Abstract

The invention relates to a cigarette mainstream smoke on-line analysis device and a cigarette mainstream smoke on-line analysis method. The device comprises a smoking machine and an atmospheric pressure chemical ionization tandem mass spectrometer. The on-line analysis method comprises the steps that: when the cigarette is smoked, mainstream smoke is collected into a mainstream smoke collection bottle; the smoke sample is directly introduced into the atmospheric pressure chemical ionization tandem mass spectrometer through a feeding valve, and is subjected to fast analysis. Compared with a traditional cigarette mainstream smoke analysis method, the smoking machine and the sample collection and introduction device have the advantages of simple structure and convenient operation. The sampling bottle of the smoking machine is connected to an ion source of the mass spectrometer through a capillary, such that sample direct introduction can be realized. Only a few seconds are needed from cigarette smoking to feeding and analysis. The sensitivity is high, and repeatability is good. The method and the device are suitable for on-line analysis of organic compounds in single-suction and suction-by-suction cigarette mainstream smoke.

Description

[0001] technical field [0002] The invention relates to the field of on-line gas analysis, in particular to an on-line analysis device and method for cigarette mainstream smoke, and a method for on-line analysis of organic compounds in cigarette mainstream smoke by using a smoking machine and atmospheric pressure chemical ionization (APCI) mass spectrometry. Background technique [0003] Cigarette smoke is an aerosol produced by incomplete combustion of tobacco during smoking. It is a constantly changing and extremely complex chemical system, which is produced by tobacco combustion, cracking and distillation during cigarette smoking. Cigarette smoke can be divided into mainstream smoke, sidestream smoke and environmental smoke (ETS) according to its formation characteristics. Mainstream smoke refers to the part of the smoke drawn from the mouth end or the end of the cigarette butt when the smoker smokes the cigarette; sidestream smoke refers to the smoke from the lit end of...

Claims

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Application Information

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IPC IPC(8): G01N27/64G01N1/24G01N1/36
Inventor 孙世豪蒋成勇王慧李鹏卢斌斌张启东毛健宗永立张建勋
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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