An online smoke real-time analyzer for tobacco products

A real-time analysis, tobacco product technology, applied in the direction of analysis materials, instruments, scientific instruments, etc., can solve the problems of inability to reflect the composition of fresh smoke products, complicated experimental steps, and cumbersome processes, and achieve real-time cleaning of smoke pollution and smoke. No residue of pollution and controllable flue gas volume

Active Publication Date: 2017-03-22
CHINA TOBACCO HUNAN INDAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is such a problem in the smoke composition data of tobacco products detected by these methods: the objects detected by traditional smoke analysis methods are far from the smoke smoked by the actual smoking sensory evaluation, for example: smoke aged for 1 minute There are big differences with fresh flue gas: (1) The particle size of the flue gas aerosol increases rapidly, and the initial diameter of the particles is distributed between 0.01 and 1.0 μm. With the extension of time and the decrease of temperature, the particle diameter continues to increase After the flue gas is kept at room temperature for 10 seconds, the particle diameter increases to 0.1-46 μm, with an average diameter of 0.2 μm; (2) The dynamic properties of the flue gas lead to the instability of the flue gas, because the concentration of the flue gas is very High, the particles in it will condense rapidly in a short time, and the number of particles in the nascent smoke will drop to a quarter of its initial value within half a second
[0003] Theoretically speaking, a comprehensive analysis of cigarette mainstream smoke components can be achieved through modern instrumental analysis methods. In practice, Cambridge filters and solvent traps are the main capture measures for smoke, but due to the smoke components Due to the complexity of flue gas components collection, separation and extraction, and enrichment, as well as the composition changes caused by the aging of flue gas, etc., it is collected by Cambridge filter or solvent absorption, and then a series of chemical extraction and extraction are carried out. Separation analysis, this conventional offline method, has complicated experimental steps, time-consuming and laborious, poor reproducibility and stability, and inevitably brings in sample loss and human error; in addition, capture, processing speed is slow, and the process is cumbersome, resulting in The aging of samples cannot reflect the composition of fresh flue gas products; the known methods of analyzing flue gas, due to the complexity of adsorption and analysis, cause differences in the composition of fresh flue gas and processed samples, so that the existing chemical analysis results cannot Fully express the results of smoke sensory evaluation, that is, it is difficult to provide sufficient and reliable information

Method used

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  • An online smoke real-time analyzer for tobacco products
  • An online smoke real-time analyzer for tobacco products
  • An online smoke real-time analyzer for tobacco products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Using a single-channel linear smoking machine as the smoking machine, the volume of the quantitative loop in the online pollution cleaning injector is 3mL, the cleaning solvent is chromatographically pure chloroform, and the flushing gas is nitrogen or helium (N 2 or He). Gas chromatography mass spectrometer (GC / MS) was the analytical detector. The temperature of the cigarette holder is set to 120°C, and a 44mm Cambridge filter is clamped in the cigarette holder.

[0102] Register the sample information in the GC / MS workstation control software, set the analysis method conditions, and enter the ready analysis state. Operate the smoking machine to make it ready for smoking.

[0103] Insert the cigarette to be tested into the cigarette holder. Set the suction parameters in the control center (external controller) software, including the number of suction ports (the third port), the number of solvent cleaning times (2 times), N 2 Gas flushing times (2 times), and click...

Embodiment 2

[0111] The first embodiment is repeated according to the same steps described above, but the cigarette holder is empty, that is, no filter sheet or filter paper of any material is clamped. Cigarette smoke samples can be subjected to suction, automatic constant temperature quantitative sampling, GC or GC / MS analysis according to the selected program to obtain a suitable chromatogram.

Embodiment 3

[0113] Example 1 was repeated according to the same steps described above, but the analysis object was a novel tobacco product (electronic cigarette). E-cigarette smoke samples can be subjected to suction, automatic constant temperature quantitative sampling, GC or GC / MS analysis according to the selected program to obtain a suitable chromatogram.

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Abstract

The invention discloses an online tobacco product smoke real-time analyzer. The online tobacco product smoke real-time analyzer comprises a smoke sucker, a sample injecting and cleaning module, a smoke analyzing module, a smoke holder, a deactivating pipeline system and an external control. The online tobacco product smoke real-time analyzer can achieve composition detection on samples; By means of absorbing materials of various characteristics and through temperature setting, the provided temperature controllable smoke holder can achieve selective smoke filtering or filter-free all smoke analysis; the external controller achieves synchronous control over the smoke sucker, an online pollution cleaning sample injector and a gas chromatograph and accordingly completes real-time collection and analysis of the smoke of tobacco products. The online tobacco product smoke real-time analyzer has the advantages of being controllable in smoke suction, smoke volume and temperature, achieving real-time residue-free smoke cleaning and the like. The online tobacco product smoke real-time analyzer can achieve smoke analysis of the tobacco products as well as achieve real-time online analysis to directly analyze composition of gas generated by combustion of the tobacco products, thereby avoiding chemical change or loss of components during a sample processing process.

Description

technical field [0001] The invention belongs to the field of smoke analysis of tobacco products, in particular to an online real-time analyzer for smoke of tobacco products. Background technique [0002] At present, there are many methods for analysis and detection of smoke from tobacco products. When using a smoking machine to simulate human smoking behavior, a variety of traps, including Cambridge filters, electrostatic precipitators, jet impactors, cold solvents (cold traps) , solid adsorbents, and solvent traps have been used to collect mainstream smoke, and direct sampling can also complete the direct sampling analysis of gas phase components. However, there is such a problem in the smoke composition data of tobacco products detected by these methods: the objects detected by traditional smoke analysis methods are far from the smoke smoked by the actual smoking sensory evaluation, for example: smoke aged for 1 minute There are big differences with fresh flue gas: (1) Th...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01N30/02
Inventor赵瑜刘金云陈波庹苏行王华杨华武谭新良
OwnerCHINA TOBACCO HUNAN INDAL CORP