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Method for simultaneously measuring content of moisture, 1,2-propanediol and glycerol in tobacco

A technology of propylene glycol and glycerol, which is applied to the content of 1,2-propylene glycol and glycerol, and simultaneously determines the moisture content in tobacco, so as to achieve the effect of ensuring applicability, accurate detection results and good extraction effect.

Pending Publication Date: 2019-04-05
CHINA TOBACCO GUIZHOU IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no research has been reported on the simultaneous determination of moisture, 1,2-propanediol, and glycerol in tobacco material of heat-not-burn cigarettes

Method used

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  • Method for simultaneously measuring content of moisture, 1,2-propanediol and glycerol in tobacco
  • Method for simultaneously measuring content of moisture, 1,2-propanediol and glycerol in tobacco
  • Method for simultaneously measuring content of moisture, 1,2-propanediol and glycerol in tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Accurately weigh 2.5g of tobacco sample (accurate to 0.1mg), place it in a 100mL Erlenmeyer flask, add 50mL of methanol solution containing internal standard (internal standard is isopropanol and 1,4-butanediol, wherein isopropanol is water) Internal standard, 1,4-butanediol is the internal standard of 1,2-propanediol and glycerol, the concentration of isopropanol is 10mL / L, the concentration of 1,4-butanediol is 1.5g / L, mechanically After shaking for 3 hours and standing for 10 minutes, the extract was taken and passed through a 0.22 μm organic phase filter membrane, and then analyzed by gas chromatography with double columns and double detectors.

[0038] Gas chromatographic double-column double-detector includes: A system measures moisture, and the chromatographic column is a packed column (stationary phase: PorapakQ 2 ,150μm), the detector is a TCD detector; B system is used to measure 1,2-propanediol and glycerol, the chromatographic column is DB-WAXETR (30m×0.32mm...

Embodiment 2～9

[0043] According to the method described in Example 1, the components of the tobacco sample were detected. The difference from Example 1 was that No. 1 tobacco sample in Example 1 was replaced with No. 2-9 tobacco samples in Example 1. The test results are shown in Table 1. Show.

[0044] Table 1 Moisture, 1,2-propanediol and glycerol content in the tobacco sample detected by the method provided by the embodiments of the present invention

[0045]

Embodiment 10

[0046] The determination of embodiment 10 detection method working curve, detection limit and limit of quantification

[0047] Using methanol as a solvent, prepare a series of standard solutions of different concentrations of water, 1,2-propanediol and glycerin, and analyze according to the method of Example 1. The water is detected by a TCD detector, and the 1,2-propanediol and glycerin Alcohol was detected by FID detector. Then adopt the internal standard method to quantify (the internal standard of moisture is isopropanol, the internal standard of 1,2-propanediol and glycerol is 1,4-butanediol), and the peak area ratio of each target and its internal standard is the ordinate (Y), the concentration of each target is the abscissa (X, μg / mL) for regression analysis, and the regression equation and correlation coefficient of water, 1,2-propanediol and glycerol are obtained. The test results are shown in Table 2.

[0048] Table 2 Working curve and correlation coefficient, detec...

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Abstract

The invention provides a method for simultaneously measuring the content of moisture, 1,2-propanediol and glycerol in tobacco. The method comprises the steps of: A) extracting a tobacco sample using an extracting agent containing internal standard to obtain an extract liquor; and B) performing quantitative analysis on moisture, 1,2-propanediol and glycerol in the extract liquor using a Gas Chromatography Dual-column and Dual-detector. Through extracting with solvent and then performing quantitative analysis and detection using Gas Chromatography Dual-column and Dual-detector Method, the methodcan measure the content of moisture, 1,2-propanediol and glycerol in tobacco sample quickly and accurately. The method provides technical support for the development of heat-not-burn tobacco products.

Description

technical field [0001] The invention belongs to the technical field of detection and analysis applications, in particular to a method for simultaneously measuring the contents of moisture, 1,2-propanediol and glycerol in tobacco. Background technique [0002] Heat-not-burn cigarettes mainly release aroma components through heating rather than burning. The reduction of heating temperature greatly reduces the components of mainstream smoke, sidestream smoke and environmental smoke. The moisture content in the tobacco material of heat-not-burn cigarettes will directly affect the sensory experience of heat-not-burn cigarette products. Similar to e-cigarettes, 1,2-propanediol and glycerin are often added as atomizers to the tobacco material of heat-not-burn cigarettes. Different types and contents of atomizing agents have a direct impact on the smoke generation effect and sensory quality. Therefore, accurate and rapid determination of moisture, 1,2-propanediol and glycerol cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/14
CPCG01N30/02G01N30/06G01N30/14G01N2030/062G01N2030/146
Inventor 张丽王维维刘剑阮艺斌惠非琼姬厚伟张小涛
Owner CHINA TOBACCO GUIZHOU IND
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