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Pretreatment method for pyrolysis analysis of flavor used for extract type tobacco

A technology for tobacco spices and extracts, which is applied in the field of tobacco chemistry, and can solve problems such as the influence of analysis and detection results, low boiling point or retention of heat-sensitive compounds, and achieve the effects of wide application range, convenient quantification, and simple steps

Pending Publication Date: 2020-02-21
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method will not destroy the active ingredients in the sample and has a good treatment effect, but it cannot achieve a high degree of retention for some low-boiling point or heat-sensitive compounds, which still has a certain impact on the analysis and detection results.

Method used

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  • Pretreatment method for pyrolysis analysis of flavor used for extract type tobacco
  • Pretreatment method for pyrolysis analysis of flavor used for extract type tobacco
  • Pretreatment method for pyrolysis analysis of flavor used for extract type tobacco

Examples

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Effect test

Embodiment 1

[0039] Embodiment 1 of the present invention provides a pretreatment method for analysis of alfalfa extract tobacco spices based on a hot wire pyrolyzer, comprising the following steps:

[0040] (1) Take a certain amount of alfalfa extract to be analyzed and place it in a 15ml flat glass quartz weighing dish, fill the sample with a height of 5mm, and freeze the alfalfa extract in a refrigerator at -50°C for 40 minutes;

[0041] (2) Place the alfalfa extract treated in step (1) in a vacuum freeze dryer with a cold trap temperature of -45°C and a vacuum degree of 250mtorr for 3 hours of vacuum freeze drying;

[0042] (3) Crush the alfalfa extract treated in step (2) into powder, mix well, weigh and fill the sample in the hot wire pyrolyzer.

[0043] The powdered alfalfa extract A after the above treatment, the alfalfa extract B after drying at 40-60°C, and the untreated viscous alfalfa extract C were subjected to pyrolysis gas chromatography mass spectrometry analysis test: CDS...

Embodiment 2

[0048] Embodiment 2 of the present invention provides a pretreatment method for the analysis of plum extract tobacco spices based on a hot wire pyrolyzer, comprising the following steps:

[0049] (1) Take a certain amount of sour plum extract to be analyzed and place it in a 15ml flat glass quartz weighing dish. The height of the sample is 4mm, and place the alfalfa extract in a refrigerator at -60°C for 30 minutes;

[0050] (2) Place the sour plum extract treated in step (1) in a vacuum freeze dryer with a cold trap temperature of -50°C and a vacuum degree of 220mtorr for 2 hours of vacuum freeze drying;

[0051] (3) Crush the sour plum extract processed in step (2) into a powder, mix it evenly, weigh it, and fill it with a sample in a hot wire pyrolyzer.

[0052] The powdery sour plum extract sample after the above treatment and the untreated viscous sour plum extract sample were subjected to thermal cracking gas-phase mass spectrometry analysis test: adopt CDS 5200 type the...

Embodiment 3

[0055] Embodiment 3 of the present invention provides a pretreatment method for the analysis of red date extract tobacco spices based on a hot wire pyrolyzer, comprising the following steps:

[0056] (1) Take a certain amount of red jujube extract to be analyzed and put it in a 15ml flat glass quartz weighing dish. The height of the sample is 3mm, and put the alfalfa extract in a refrigerator at -55°C for 35 minutes;

[0057] (2) Place the jujube extract treated in step (1) in a vacuum freeze dryer with a cold trap temperature of -45°C and a vacuum degree of 220mtorr for 1 hour of vacuum freeze drying;

[0058] (3) Crush the jujube extract treated in step (2) into powder, mix well, weigh and fill the sample in the hot wire pyrolysis instrument.

[0059] The above-mentioned treated powdery jujube extract sample and the untreated viscous red jujube extract sample were subjected to thermal cracking gas-phase mass spectrometry analysis test: CDS 5200 thermal cracking instrument wa...

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Abstract

The invention discloses a pretreatment method for pyrolysis analysis of flavor used for extract type tobacco. The method comprises following steps of freezing the to-be-analyzed flavor used for extract type tobacco; drying the frozen flavor in a vacuum manner; smashing the dried flavor into powder, weighing after the flavor powder is mixed evenly and carrying out sample packing for a hot filamenttype pyrolysis instrument. As the ultra-low temperature freezing treatment is adopted by the provided pretreatment method, compound components with low boiling point or heat sensitivity in the flavorsample can be reserved to the greatest extent; and the method has simple steps, is easy to operate and has good data reproducibility and wide range of application.

Description

technical field [0001] The present invention relates to the technical field of tobacco chemistry, [0002] In particular, the present invention relates to a pretreatment method for pyrolysis analysis of extract-type tobacco spices. Background technique [0003] Pyrolysis technology is to use the thermal instability of organic matter to heat or burn under the condition of no oxygen or oxygen deficiency, so that organic matter can be cracked to produce small molecular substances or combine into new substances. Pyrolysis is currently the closest analysis method to the combustion process of cigarettes, and there are many pyrolysis instruments, among which the hot wire pyrolysis instrument has the advantages of wide application, wide temperature range and simple sample injection. The combination of hot wire pyrolysis instrument and GC-MS can be used as a method to evaluate the effect of tobacco flavors on cigarettes. [0004] Extract usually refers to the spice products obtaine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/86
CPCG01N30/02G01N30/06G01N30/8679
Inventor 刘吟
Owner HUBEI CHINA TOBACCO IND
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