Device for analyzing gas phase chemical components of cigarette smoke on line

A gas-phase chemistry and analysis device technology, which is applied to measurement devices, analysis materials, material analysis by electromagnetic means, etc., can solve the problem that the residual interference effect of smoke cannot be eliminated well, and continuous automatic detection of cigarette smoke cannot be performed. Flue gas analysis results comparison and other issues, to achieve good qualitative and quantitative analysis results, simple structure, and reduce the effect of interference effects

Active Publication Date: 2011-09-21
CHINA TOBACCO ANHUI IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Mitschke et al. found that due to the long flue gas flow pipe of commercial smoking machines, a large amount of residual flue gas components are often attached to the inner wall, which will greatly interfere with the quantitative analysis results of the next puff of flue gas; in order to eliminate the interference, Mitschke et al. used Self-made smoking devices replace commercial smoking machines, and manually pull out cigarettes between every two puffs of smoke, and use air suction

Method used

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  • Device for analyzing gas phase chemical components of cigarette smoke on line
  • Device for analyzing gas phase chemical components of cigarette smoke on line
  • Device for analyzing gas phase chemical components of cigarette smoke on line

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Smoking cigarettes under standard smoking conditions, that is, 35ml per puff, puffing for 2 seconds, with a puffing gap of 58 seconds. Before the cigarette is smoked, the volume in the pipe from the smoke introduction two-way valve 12 to the smoke introduction and outlet 4 is constant and in a vacuum state, so when setting the suction volume of the smoking machine, this The volume in part of the pipe should be considered, that is, the actual suction volume of the smoking machine should be 35ml minus the volume in the pipe; the online analysis mass spectrometer uses synchrotron radiation as the ionization light source, and the photon energy is selected as 11.0eV. Scan the flue gas immediately after inhaling, and set the scan time of each flue gas to 10 seconds, that is to say, you can obtain a single-puff flue gas mass spectrum during puff-by-puff analysis. Refer to the analysis results Figure 4 .

[0047] In addition, in order to verify the effect of the present invention...

Embodiment 2

[0049] The smoking conditions of the smoking machine were the same as in Example 1, and the photon energy of the synchrotron radiation photoionization online analysis mass spectrometer was selected to be 12.0 eV. After the first puff of smoke is finished, turn off the smoking machine and other working accessories. At the same time, immediately start the online analysis mass spectrometer to scan and test at regular intervals. Each scan time is 5 seconds. The total analysis The time is 240 seconds, and the change rule of the component to be measured can be obtained.

[0050] Image 6 The changes over time of several representative flue gas components with mass numbers of 32, 60 and 61 are given.

[0051] Therefore, the cigarette smoke gas phase chemical composition online analysis device provided by the present invention effectively eliminates the influence of the upper puff smoke on the lower puff gas composition analysis result when the cigarette is smoked puff by puff, and can be...

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Abstract

The invention discloses a device for analyzing gas phase chemical components of cigarette smoke on line, which is characterized in that: a smoke-transmitting quartz capillary is arranged between the sucking barrel of a smoking machine and an on-line analytical mass spectrometer; two openings are formed on the end faces of the sucking barrel; one opening is a smoke analysis sampling opening; the other opening is a smoke importing and exporting opening which is connected with a three-way pipe; the three-way pipe is communicated with a cigarette holder which can continuously switch and a pipeline vacuum extracting opening at the same time; a vacuum ultraviolet ionization area is formed in the on-line analytical mass spectrometer; one port of the smoke-transmitting quartz capillary is connected with the smoke sampling opening on the sucking barrel; and the other port of the smoke-transmitting quartz capillary passes through the cavity wall of the on-line analytical mass spectrometer and enters the vacuum ultraviolet ionization area. By using the device for analyzing the gas phase chemical components of the cigarette smoke on line, the influence of the smoke of a last toke on the analysis result of the gas phase components of the smoke of a next toke can be effectively eliminated in the process of sucking a cigarette toke by toke, and the gas phase components of a single toke of the cigarette smoke can be automatically and continuously analyzed on line.

Description

Technical field [0001] The invention relates to an analysis device for the gas phase chemical composition of cigarette smoke, and more specifically an online and real-time analysis device for the gas phase composition of single-puff cigarette smoke. Background technique [0002] Cigarette smoke is the most important characterization of cigarette products to consumers, and the most important factor reflecting the quality and style of cigarettes. Therefore, the analysis of the chemical composition of cigarette smoke is a very important research work, and it is also one of the key elements to construct the core technology of cigarettes. [0003] Cigarette smoke is also a very complex chemical mixture. So far, thousands of substances have been identified from it. Generally, for the convenience of research, people use Cambridge filters to divide the flue gas into particulate matter and gas phase substances. The part of the flue gas that can pass through the Cambridge filter at room tem...

Claims

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Application Information

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IPC IPC(8): G01N27/64
Inventor 胡永华潘洋王程辉徐迎波王健
Owner CHINA TOBACCO ANHUI IND CO LTD
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