Method for analyzing aroma components in tobacco

An analysis method and technology of aroma components, applied in the field of tobacco, can solve problems such as insufficient sensitivity, and achieve the effects of low cost, rich aroma components, and convenient equipment assembly

Pending Publication Date: 2021-12-10
SHANGHAI TOBACCO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For trace aroma components in tobacco leaves and smoke, t

Method used

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  • Method for analyzing aroma components in tobacco
  • Method for analyzing aroma components in tobacco
  • Method for analyzing aroma components in tobacco

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0117] Example 1

[0118] Analysis of aroma components in the embodiment of the present embodiment in tobacco, the following steps:

[0119] 1) using the cigarette smoking machine suction, Cambridge filter using the mainstream smoke trap, the Cambridge filter pad into a flask, the flask into a water bath temperature balancing heating pot 15 is heated at 70 deg.] C minute;

[0120] 2) After equilibration, the vial by continued heating pot temperature water bath heated ,, a heating temperature of 70 ℃, and the separator was prepared using an electric air pump, a diaphragm pump outlet flow rate of the electric 800mL / min, the sample vial of sweep 18 hours;

[0121] 3) filled with an adsorbent adsorbing 200mg Tenax liner (diameter of 0.25 inches and a length of 3.5 inches) was purged resulting enriched air. Suction flask and the liner, spiral condenser, and a heating module blowing circulation pump is connected to provide closed loop, wherein the helical coiled condenser neck necked ...

Example Embodiment

[0131] Example 2

[0132] Repetitive inspection method of the present invention. The results showed that, the RSD typical aroma components in mainstream smoke less than 10%, as shown in Table 2. With conventional solvent extraction (using 50mL Cambridge filter was extracted organic reagent, 1 uL sample) to compare the data obtained in the flue gas, aroma components obtained response typical method of the present invention is significantly increased about 500 times the conventional solvent extraction method. It was confirmed that the method according to the present invention is fully extracted component, typically, the higher the relative content of each component, good repeatability.

[0133] Table 2

[0134]

Example Embodiment

[0135] Example 3

[0136] Select necked vial was charged 100g tobacco, it is heated in water bath 40 ℃ balanced for 15 minutes. Then, after the tobacco continued to maintain the balance 40 ℃ heated by circulating air through the blow-mentioned intake pump input necked vials for continuous purging, the purge air flow rate of 1000ml / min, purge time was 24h. A purge gas through the tobacco is condensed in condenser coil 5 ℃, input via the suction pipe liner enriched for 24 hours, and finally the liner enriched adsorption of aroma components removed by thermal desorption - gas chromatography - mass spectrometry analyzed by technology. Further, also may be enriched in aroma components adsorbed liner removed, eluted three times with ethanol, the amount of time 2mL, i.e., the sample to obtain the desired flavor components.

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Abstract

The invention provides a method for analyzing aroma components in tobacco, which comprises the following steps: continuously heating a tobacco sample to be detected, enriching the aroma components in the tobacco by adopting a closed loop gas stripping method, performing thermal desorption, and performing qualitative and quantitative analysis by adopting a gas chromatograph-mass spectrometer. According to the method, the problem that the adsorption effect of the adsorbent becomes poor in the enrichment process can be effectively avoided, the method also has a good adsorption effect on the to-be-detected tobacco sample with the high moisture content, and the test of the aroma components in the tobacco is more accurate and effective.

Description

technical field [0001] The invention relates to the field of tobacco, in particular to an analysis method for aroma components in tobacco. Background technique [0002] The analysis of aroma components in tobacco is of great significance for the analysis of tobacco leaf style characteristics and the study of cigarette quality and style. The analytical methods routinely used in the prior art include solvent extraction, solid phase extraction, and headspace-solid phase microextraction. For the trace aroma components in tobacco leaves and smoke, the sensitivity of the above methods is still insufficient. [0003] Closed-Loop-Stripping-Analysis (CLSA) is a closed-loop system in which a certain volume of gas circulates between sample bottles and enrichment tubes through an air pump and piping system. The component to be tested is continuously extracted and adsorbed in the enrichment tube by the airflow, which has the advantages of high concentration multiple, strong adsorption ...

Claims

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Application Information

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IPC IPC(8): G01N30/08G01N30/88
CPCG01N30/08G01N30/88
Inventor 吴秉宇王亮刘百战费婷周妍安彤
Owner SHANGHAI TOBACCO GRP CO LTD
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