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Method for evaluating cigarette perfuming uniformity

A uniformity, cigarette technology, applied in the field of analysis and detection, can solve the problems of difficult qualitative and quantitative, small content, complex cigarette matrix, etc., and achieve the effects of good separation effect, simple pretreatment and high sensitivity

Pending Publication Date: 2020-09-25
SHANGHAI TOBACCO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the evaluation of the uniformity of cigarette flavoring is mainly carried out from the following aspects. One is to rely on well-trained and experienced experts to complete the evaluation through smoking, and the accuracy of the evaluation results is difficult to guarantee; Calculating the uniformity of flavoring lacks actual support; the third is to evaluate the uniformity of flavoring from the coefficient of variation of the content of flavor markers added to shredded tobacco
However, due to the complex chemical composition of flavors, there are many types, the content is small, and the cigarette matrix is ​​complex, the characteristic chemical components of flavors are easily covered in the background of cigarettes, making it difficult to qualitatively quantify

Method used

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  • Method for evaluating cigarette perfuming uniformity
  • Method for evaluating cigarette perfuming uniformity
  • Method for evaluating cigarette perfuming uniformity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Example 1: Evaluation of Uniformity of Flavoring of Cigarettes within a Batch

[0076] To evaluate the uniformity of flavoring of cigarettes within a batch, the following technical steps are specifically adopted:

[0077] 1) Pretreatment of cigarette samples

[0078] Take 1 sample of shredded tobacco before flavoring and 3 samples of shredded tobacco after flavoring (the sampling principle is to take samples at intervals of 2 minutes after the flow rate in the flavoring process is stable), and pass through a 40-mesh sieve after freezing and grinding.

[0079] 2) Automatic headspace sampling

[0080] Headspace sampling conditions were: incubation temperature 90°C, incubation time 20min, injection volume 100uL, injection needle temperature 85°C, incubation speed 500rpm.

[0081] 3) Gas chromatography-ion mobility spectrometry detection

[0082] The instrument conditions of gas chromatography-ion mobility spectrometry are: analysis time 35min, chromatographic column typ...

Embodiment 2

[0089] Example 2: Evaluation of Uniformity of Flavoring of Cigarettes Between Batches

[0090] To evaluate the uniformity of cigarette flavoring between batches, the following technical steps are specifically adopted:

[0091] 1) Pretreatment of cigarette samples

[0092] One sample of shredded tobacco before flavoring and three samples of shredded tobacco after flavoring were taken from different batches, which were freeze-ground and then passed through a 40-mesh sieve.

[0093] 2) Automatic headspace sampling

[0094] Headspace sampling conditions were: incubation temperature 90°C, incubation time 20min, injection volume 100uL, injection needle temperature 85°C, incubation speed 500rpm.

[0095] 3) Gas chromatography-ion mobility spectrometry detection

[0096] The instrument conditions of gas chromatography-ion mobility spectrometry are: analysis time 35min, chromatographic column type FS-SE-54-CB-115m ID: 0.53mm; column temperature 60°C, carrier gas / drift gas N2 ; IMS t...

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Abstract

The invention provides a method for evaluating cigarette perfuming uniformity, which comprises the following steps of 1) carrying out headspace-gas chromatography-ion mobility spectrometry analysis ona tobacco shred sample before perfuming and a tobacco shred sample after perfuming to obtain a three-dimensional information spectrogram corresponding to the samples, and 2) extracting a spectrogramcharacteristic region from the three-dimensional information spectrogram and analyzing to evaluate the uniformity of cigarette perfuming. The method has the advantages of rapid detection, simple pretreatment, high sensitivity, good separation effect, high reliability, visualization and the like, and can be used for evaluating the uniformity of cigarette perfuming.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection, in particular to a method for evaluating the flavoring uniformity of cigarettes. Background technique [0002] Cut tobacco flavoring is an important process in the cigarette production process, and its task is to apply a certain amount of essence to the blended cut tobacco accurately and evenly according to the requirements of the production formula. Flavoring quality of shredded tobacco is one of the important factors affecting the quality of cigarettes, and the uniformity of flavoring is an important technical index in the cigarette production process, which directly affects the intrinsic quality of cigarettes. [0003] At present, the evaluation of the uniformity of cigarette flavoring is mainly carried out from the following aspects. One is to rely on well-trained and experienced experts to complete the evaluation through smoking, and the accuracy of the evaluation results is d...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/16G01N30/72G01N30/86
CPCG01N30/02G01N30/06G01N30/16G01N30/72G01N30/8679G01N30/8686
Inventor 李登科张春涛叶鸿宇吴若昕邢立霞马立超田志章田楠
Owner SHANGHAI TOBACCO GRP CO LTD
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