Method for determining benzene and benzene series contents in flavor and spices for cigarettes

A technology of cigarette flavor and benzene series, which is applied in the field of physical and chemical inspection of cigarette materials, can solve problems affecting the overall sensory quality of cigarettes, harm to consumers' health, etc., and achieve the effects of reducing errors, high recovery rate, and eliminating influence and interference.

Inactive Publication Date: 2011-11-02
HONGYUN HONGHE TOBACCO (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Residues of these harmful components not only directly affect the overall sensory quality of cigarettes, but also bring harm to the health of consumers

Method used

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  • Method for determining benzene and benzene series contents in flavor and spices for cigarettes
  • Method for determining benzene and benzene series contents in flavor and spices for cigarettes
  • Method for determining benzene and benzene series contents in flavor and spices for cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Determination of the content of benzene and benzene series in tobacco flavors and fragrances (the determination process is as follows figure 1 shown).

[0040] 1. Preparation of internal standard matrix calibration solution:

[0041] (1) Preparation of internal standard stock solution Ⅰ: Accurately weigh 50 mg of fluorobenzene in a 50 mL volumetric flask, adjust the volume to the mark with ethanol solution and mix well to obtain internal standard stock solution Ⅰ with a concentration of 1 g / L; internal standard stock solution ⅠStore sealed in a refrigerator at 4°C, and the validity period is 3 months;

[0042] (2) Preparation of internal standard stock solution II: Accurately pipette 1 mL of internal standard stock solution I into a 100 mL volumetric flask, dilute to the mark with ethanol solution and mix well to obtain internal standard stock solution II with a concentration of 1 mg / L; The internal standard stock solution II needs to be prepared immediately;

[004...

Embodiment 2

[0072] The present embodiment detects the repeatability and standard addition recovery of the inventive method:

[0073] Add 3 different concentrations of standard working solutions to the samples (the concentrations of the corresponding components in the standard solutions are (0.008mg / L, 0.02mg / L, 0.04mg / L), and the concentration of the internal standard is 1mg / L, Each sample was measured 5 times respectively, and the conditions of headspace chromatography mass spectrometry were the same as in Example 1, and the relative standard of the recovery rate of standard addition of benzene and benzene series in the tobacco flavor and fragrance of this method and the measured value after the standard addition was calculated according to the analysis results Deviation, the results are shown in Table 4:

[0074] Table 4 The results of standard addition recovery and standard deviation

[0075] Compound name Recovery rate(%) RSD (%) benzene 96.5 2.0 Tol...

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Abstract

The invention discloses a method for determining benzene and benzene series contents in flavor and spices for cigarettes, and the method comprises the following steps: preparing an internal standard matrix correction liquid, a standard working solution and a sample; detecting and analyzing the standard working solution and the sample by means of a headspace gas chromatography mass spectrometer; drawing a standard curve; and calculating to obtain the result. According to the invention, the complicated sample pretreatment process is omitted, the influence and interference on the analysis of volatile components in the sample are eliminated, and errors caused by the reproducibility of the pretreatment method and the precision problem of the instrument are reduced. The used chromatographic conditions ensure that five types of target compounds and internal standard chromatographic peaks are better separated, the detection limit is 0.91-1.82 mug / kg, the standard recovery rate is 94-103%, and the average relative standard deviation is 3.9-4.9%, thereby reflecting that the method disclosed by the invention has the advantages of high recovery rate and good repeatability.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical inspection of cigarette materials, and in particular relates to a method for measuring the content of benzene and benzene series in tobacco flavors and fragrances. Background technique [0002] Tobacco flavors and fragrances are one of the tobacco materials and are indispensable raw materials for cigarette production. Their formula is also one of the core technologies of tobacco industry enterprises. The application of flavors, fragrances and additives is closely related to the establishment and development of cigarette brands. Tobacco flavors and fragrances are mostly derived from natural flavors, and affected by various factors such as origin and processing, there are many types and significant differences in ingredients. Its quality is usually detected by sensory tests such as aroma, fragrance and appearance identification, and physical and chemical constants such as relative dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/16G01N30/06
Inventor 王庆华范多青杨艳萍郭丽娟张静李世杰师艳萍
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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