Device for simulating absorption of mainstream smoke by human oral cavity in smoking process

An absorption device and mainstream smoke technology, applied in the field of cigarette manufacturing, can solve the problems affecting the reliability and scientificity of cigarette smoke analysis, ignoring biochemical characteristics, etc., and achieve the effect of high integration, convenient use and strong correlation

Active Publication Date: 2010-06-02
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the biochemical properties of chemicals in mainstream smoke that come into contact with oral saliva and are absorbed, causing p

Method used

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  • Device for simulating absorption of mainstream smoke by human oral cavity in smoking process
  • Device for simulating absorption of mainstream smoke by human oral cavity in smoking process
  • Device for simulating absorption of mainstream smoke by human oral cavity in smoking process

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: Determination of pH value of smoke absorption liquid in the bionic oral cavity absorption method based on the present invention. Nicotine is a unique chemical component of tobacco, and its existing state is closely related to the pH value of cigarette smoke. The proportion of free nicotine in the smoke to the total nicotine can be determined by measuring the pH value of the smoke, which is one of the important factors affecting the quality of cigarette products. Therefore, it is of great significance to accurately measure the pH value of cigarette smoke. At present, the common method for measuring the pH value of cigarette smoke is the Cambridge filter trapping smoke method (see: Lu Binbin et al., Chinese Journal of Tobacco, 2005, 11(6): 7-16), but it cannot truly reflect the pH value of cigarette smoke when people smoke. feeling situation. The device and technology of the invention are used to collect the bionic absorption liquid of the oral cavity, and t...

Embodiment 2

[0036] Example 2: Analysis of phenolic substances in the smoke absorption liquid of single cigarette cigarettes based on the bionic oral absorption method of the present invention. Phenolic substances in cigarette smoke are related to product quality. At present, the Cambridge filter capture-HPLC fluorescence method is commonly used to detect phenolic substances in mainstream cigarette smoke (see Xie Fuwei et al. Tobacco Science and Technology, 2004, 5:6-10), and the detection components include hydroquinone, resorcin Diphenol, catechol, phenol, m / p-cresol and o-cresol, etc.

[0037] Detection steps based on the bionic oral absorption method of the present invention: the single-material cigarette sample is balanced for 48 hours in an environment with a temperature of 22 ± 1 ° C and a relative humidity of 60 ± 3%, and qualified cigarettes are screened out, and the cigarettes are tested in the two rollers of the simulated oral cavity device. Add 10mL of bionic absorption liquid...

Embodiment 3

[0040] Example 3: Analysis of phenolic substances in smoke absorption liquid of finished cigarettes based on the bionic oral absorption method of the present invention. The detection steps of the bionic oral absorption method and the literature methods used for comparison are the same as those in Example 2.

[0041] Figure 5A The HPLC figure of the finished cigarette brand B-hard cigarette sample using the bionic oral absorption method based on the present invention to detect smoke phenols, Figure 5B The HPLC chart of detecting phenolic substances in the smoke of the finished cigarette brand B-hard cigarette sample by the common method in the literature. Comparative analysis Figure 5A and Figure 5B The same conclusion as in Example 2 can also be drawn.

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Abstract

The invention discloses a device for simulating the absorption of mainstream smoke by human oral cavity in the smoking process, which is characterized by comprising a cigarette clamping and holding device, a rotating roller type device for simulating the absorption of inhaled smoke by human oral cavity, a single-channel smoke absorbing machine, a rotating roller type device for simulating the absorption of exhaled smoke by human oral cavity, a stepless speed-regulating electric motor, a power transmitting mechanism and a smoke outlet. The device for simulating the absorption of mainstream smoke by human oral cavity in the smoking process is arranged in an integral constant-temperature cover and can be used for more accurately simulating the cigarette smoking by human body and the biophysical and biochemical mainstream smoke flowing process in the human oral cavity so as to be convenient for studying more deeply and accurately the mainstream smoke flowing process in the human body.

Description

technical field [0001] The invention belongs to the field of cigarette manufacturing research, and relates to a device for simulating the absorption of mainstream smoke in the process of smoking by human oral cavity. Background technique [0002] Tobacco, including cigarettes and cigars, is a special commodity whose effect is achieved by smoking its smoke. Physiological, biochemical, and toxicological research on the chemical components of smoke depends on advanced and reasonable methods, devices, and technologies for capturing and absorbing chemical substances in mainstream smoke. In the study of cigarette smoke capture and absorption, automatic smoking machines have been used to simulate the process of human smoking cigarettes, which is obviously different from the biophysical process of mainstream smoke being inhaled and exhaled through the mouth when humans smoke cigarettes. At the same time, the biochemical characteristics of the chemical substances in mainstream smoke...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 毛友安李军古君平刘巍钟科军魏万之
Owner CHINA TOBACCO HUNAN INDAL CORP
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