Method for determining nicotine content in tobacco product and method for simultaneously determining content of water, 1, 2-propylene glycol, glycerol and nicotine
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A technology for tobacco products and determination methods, which is applied to the determination of nicotine content in tobacco products and the simultaneous determination of water, 1,2-propanediol, glycerol and nicotine content, and can solve problems such as inaccurate determination of nicotine
Pending Publication Date: 2020-06-26
CHINA TOBACCO GUIZHOU IND
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[0004] The purpose of the present invention is to solve the problem of inaccurate determination of nicotine in tobacco products in the prior art
Method used
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Embodiment 1
[0063] 1. Extract preparation
[0064]Accurately weigh 6.0000g of 1,4-butanediol and 1.0000g of 2-methylquinoline, measure 80mL of triethylamine, dissolve in 100mL of methanol, transfer to a 2L volumetric flask, and then dilute to volume with methanol.
[0065] 2. Sample Extraction
[0066] Accurately weigh 1.0000g of No. 1 tobacco product, add 50mL of extract, oscillate for 3h, let stand for 10min, take the supernatant through a 0.45μm organic filter membrane, and then put it into a chromatographic bottle for testing.
[0067] 3. Instrument analysis
[0068] Double-column and double-detector gas chromatographic analysis: A system measures moisture, the chromatographic column is a DB-ALC (30m×0.32 mm, 1μm) capillary column, and the detector is a TCD detector; B system measures 1,2-propanediol, propane Triol and nicotine, the chromatographic column is a DB-ALC (30m×0.32mm, 1μm) capillary column, and the detector is an FID detector. Programmed temperature rise: keep at 90°C f...
Embodiment 2
[0072] Tobacco product No. 2 was taken, and the detection method was the same as that in Example 1, except that the contents of water, 1,2-propanediol, glycerol and nicotine in tobacco product No. 2 were different from those in No. 1 tobacco product.
Embodiment 3
[0075] Tobacco product No. 3 was taken, and the detection method was the same as in Example 1, except that the contents of water, 1,2-propanediol, glycerol and nicotine in tobacco product No. 3 were different from those in tobacco product No. 1.
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Abstract
The invention relates to a method for determining nicotine content in a tobacco product. The method comprises the following steps: selecting an organic solvent with a volume of V, mixing the organic solvent with a tobacco product with a mass of m, and extracting nicotine in the tobacco product to obtain an extract liquid, the organic solvent being a triethylamine-containing methanol solvent; carrying out nicotine content analysis on the extracting solution by adopting a gas chromatography method to obtain the nicotine concentration in the extracting solution; and calculating the nicotine content in the tobacco product according to V, m and the obtained nicotine concentration. According to the method, the nicotine in the tobacco product can be completely extracted, so that the nicotine in the tobacco product can be accurately determined. Meanwhile, a one-step extraction method is adopted, so that the operation steps are reduced, the loss of nicotine in the extraction operation is reduced, and the accuracy of nicotine measurement is further improved. The invention also relates to a method for simultaneously determining the content of water, 1, 2-propylene glycol, glycerol and nicotine in tobacco products.
Description
technical field [0001] The invention belongs to the technical field of detection and analysis applications, in particular to a method for determining the content of nicotine in tobacco products and a method for simultaneously determining the content of water, 1,2-propanediol, glycerol and nicotine Background technique [0002] The moisture content in heat-not-burn tobacco products not only affects the rolling of tobacco products, but also directly affects the sensory quality of products, such as the temperature of the first puff of smoke. High content of 1,2-propanediol or glycerol is often added as an atomizing agent in heat-not-burn tobacco products. Different types and contents of atomizing agents will directly affect the smoke generation effect and sensory quality; and nicotine is the The key active ingredient of the product, the total nicotine content in tobacco products is closely related to the strength and irritation of smoke. [0003] For the detection of nicotine ...
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