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Ultra-low temperature extraction device and analysis method of smoke aroma components by using ultra-low temperature extraction device

An extraction device and a technology for aroma components, which are applied in the field of tobacco analysis, can solve the problems affecting the qualitative accuracy of mass spectrometry, limited capacity of one-dimensional chromatographic peaks, insufficient resolution, etc., so as to save experimental costs and operational difficulties, and improve accuracy and reliability. Sex, the effect of short analysis time

Inactive Publication Date: 2013-06-19
GUIZHOU TOBACCO SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The practical problem to be solved by the present invention: the operation of the prior art is relatively complicated, and the aroma components in the smoke particulate matter can only be collected by using the Cambridge filter, while the traditional one-dimensional chromatographic peak capacity is limited and the resolution is insufficient. For complex samples such as smoke aroma components, the peak overlap is serious, which affects the qualitative and quantitative accuracy of mass spectrometry. The present invention improves the existing deficiencies in the analysis of smoke aroma components, and specially designs an ultra-low temperature solvent extraction device. The aroma components in the enriched flue gas are collected at ultra-low temperature, and combined with comprehensive two-dimensional gas phase time-of-flight mass spectrometry after concentration for qualitative and quantitative analysis

Method used

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  • Ultra-low temperature extraction device and analysis method of smoke aroma components by using ultra-low temperature extraction device
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  • Ultra-low temperature extraction device and analysis method of smoke aroma components by using ultra-low temperature extraction device

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Embodiment 1

[0026] The present invention is further described by the following specific examples, but does not limit the present invention.

[0027] The cigarettes were equilibrated at a temperature of 22°C ± 1°C and a relative humidity of 60% ± 2% for more than 48 hours. Fill the extraction container (6) with 200-300 mL of diethyl ether extract, put a certain amount of liquid nitrogen in the liquid nitrogen container (7), take 10-20 cigarettes, and use the above-mentioned self-made ultra-low temperature solvent extraction device to extract the flue gas Aroma components are separated and collected. The extracted solution was thawed at normal temperature and pressure, a certain amount of internal standard phenethyl acetate was added to the extraction solution, and then concentrated to 1-2 mL at normal temperature and pressure using a rotary evaporator. Finally, the samples were qualitatively and quantitatively analyzed by comprehensive two-dimensional gas phase time-of-flight mass spectro...

Embodiment 2

[0030] The aroma components of cigarette smoke of different brands are measured by the method of the present invention, wherein the samples mainly come from four brands of cigarettes (represented by A, B, C, and D) sold in the market with different origins, and 54 kinds of cigarettes are detected by the above method. Aroma components, the test results are shown in Table 2:

[0031]

[0032]

[0033]

[0034]Note: The unit of the above data is μg / tube, which are the average values ​​of three measurements.

[0035] It can be seen from the test data in Table 2 above that different brands of cigarettes have different smoke aroma components, which may lead to different smoking aroma characteristics of different brands of cigarettes, so as to satisfy the smoking preferences of different groups of people. Therefore, the analysis method established by the present invention can detect the smoke aroma components in cigarettes with different style characteristics.

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Abstract

The invention discloses an ultra-low temperature extraction device and an analysis method of smoke aroma components by using the ultra-low temperature extraction device combining with a full two-dimensional gas-phase time-of-flight mass spectrometer. Compared with a conventional method, the analysis method is low in price, easy to operate, free from high temperature and high pressure treatment in separation and enrichment processes thus guaranteeing the characteristics of original aroma components in smoke, being capable of being used for collecting and enriching aroma components in particulate matters and gaseous matters of the smoke simultaneously, and being capable of being used for detection by utilizing the full two-dimensional gas-phase time-of-flight mass spectrometer simultaneously, so that the device and the method have the advantages of good degree of separation, high sensitivity and accuracy, and high analysis speed.

Description

technical field [0001] The invention belongs to the field of tobacco analysis, and in particular relates to an ultra-low temperature extraction device and a method for analyzing smoke aroma components using the device. Background technique [0002] Tobacco is not eaten directly, but has a certain physiological effect on the human oral cavity through the smoke components produced by smoking and burning. Generally speaking, what people smoke from tobacco is the chemical components produced by pyrolysis during the combustion process and the original chemical components of some tobacco leaves that evaporate into the smoke after thermal distillation. The aroma components that can be felt directly affect the smoking quality of cigarettes. . Understanding the composition and properties of aroma components in smoke is the basis for improving the smoking characteristics of tobacco leaves. Therefore, it is of great significance to analyze and study the aroma components in smoke. Sch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22G01N27/62
Inventor 向章敏耿召良周淑平蔡凯葛永辉张婕
Owner GUIZHOU TOBACCO SCI RES INST
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