Method for detecting nicotine form in tobacco material and method for judging type of acid added in tobacco material
A technology for tobacco and nicotine is applied in the field of detecting nicotine forms in tobacco materials, and can solve the problems of difficulty in spectrum analysis, difficulty in popularization, and inability to characterize nicotine forms.
Pending Publication Date: 2022-03-18
CHINA TOBACCO HUNAN INDAL CORP
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Problems solved by technology
1H NMR technology can obtain the morphological distribution of nicotine in tobacco by measuring the chemical shift of nicotine hydrogen in the tobacco system. This technology requires a nuclear magnetic resonance instrument, which is a large-scale instrument, expensive, and not universally operable. Certain difficulty, difficult to popularize
[0006] During the development of new tobacco products, most of the nicotine salts are added to e-cigarette liquids, and most of the nicotine forms in heated cigarette products are also nicotine salts. At present, more and more studies have begun to focus on e-cigarette liquids and smoking media. As well as the form of nicotine contained in the aerosol, the form of nicotine is an important factor in sensory evaluation, but the form of nicotine contained in it cannot be qualitatively determined by using the temperament method
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Embodiment 1
[0063] A method for detecting the form of nicotine in tobacco materials, comprising the steps of:
[0064] S1. Provide shredded Burley tobacco without adding acid, which is recorded as blank shredded tobacco;
[0065] Tobacco shreds without acid added were subjected to pyrolysis-GC / MS analysis (PY-GC / MS) at 250°C, 300°C and 350°C respectively to obtain blank standard chromatograms at various temperature conditions, see Figure 1-3 ;From Figure 1-3 It can be seen that the peak shape of the nicotine peak in shredded tobacco is better, and there is no tailing phenomenon.
[0066] Add tartaric acid to the blank shredded tobacco, and carry out thermal cracking-GC analysis, as follows:
[0067] Dissolve 1g of tartaric acid in 1.5g of water and 1g of absolute ethanol, spray it into 5g of blank shredded tobacco, and bake it in an oven at 50°C for 20min. 1 mg of cured cut tobacco was analyzed by pyrolysis gas chromatography-mass spectrometry (PY-GC / MS) at 250°C, 300°C and 350°C res...
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Abstract
The invention relates to a method for detecting the form of nicotine in a tobacco material and a method for judging the type of acid added in the tobacco material, which comprises the following steps: providing a certain tobacco material without acid, and recording the tobacco material as a blank tobacco material; performing thermal cracking-gas chromatography-mass spectrometry analysis on the blank tobacco material at T DEG C to obtain a blank standard chromatogram; adding a certain acid into the blank tobacco material to obtain a tartaric acid tobacco material; carrying out thermal cracking-gas chromatography-mass spectrometry analysis on the tartaric acid tobacco material at T DEG C to obtain a standard chromatogram of the tartaric acid; performing thermal cracking-gas chromatography-mass spectrometry analysis on the tobacco material to be detected at T DEG C to obtain a detection map; and comparing the detection map with a standard chromatogram, and judging the nicotine form in the tobacco material to be detected. The method provided by the invention is simple and practical, and can effectively detect the condition of the acid added in the unknown tobacco material and obtain the nicotine form information.
Description
technical field [0001] The invention relates to a method for detecting the form of nicotine in tobacco materials and a method for judging the type of acid added in tobacco materials, in particular to a method for detecting the form of nicotine in tobacco materials by using thermal cracking-gas chromatography technology and A method of identifying the type of acid added to tobacco material. Background technique [0002] Nicotine is an extremely important chemical component of tobacco and smoke, and an important material basis for the sensory quality of tobacco and tobacco products. In the process of smoking cigarettes, the absorption of nicotine by the human body can produce the initial "head" and "vigor" feeling in the throat. Nicotine can act on the human central nervous system to cause corresponding physiological reactions. An appropriate amount of nicotine intake can refresh the brain, eliminate pain and increase nerve excitement. [0003] The nicotine molecule contains...
Claims
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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 赵国玲张博邓昌健龚淑果黄平尹新强代远刚易建华
Owner CHINA TOBACCO HUNAN INDAL CORP