Method used for determining puff-by-puff alkaloids in cigarette main stream smoke
A technology for mainstream cigarette smoke and alkaloids, which is applied in measuring devices, instruments, scientific instruments and other directions to achieve the effects of high efficiency, strong practicability and convenient testing
Inactive Publication Date: 2015-11-11
CHINA TOBACCO JIANGSU INDAL
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[0003] At present, the content of alkaloids in the mainstream smoke of cigarettes is generally determined by stick, and the five alkaloids (nicotine, nornicotine, mesmin, pseudobasine and anonicotine) in the particulate matter of cigarette mainstream smoke are measured simultaneously. No studies on mouthful content have been reported
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[0023] 1. Cigarette samples, main reagents and instruments used in this example
[0024] (1) Cigarette samples are shown in Table 1
[0025] Table 1 Cigarette samples and specifications (mg / stick)
[0026] cigarette sample box label tar box labeled nicotine box labeled carbon monoxide A 13 1.3 13 B 8 0.8 8 C 5 0.6 8 D 8 0.8 10 E 13 1.2 13
[0027] (2) Standard samples. Nicotine, nornicotine, mesmin, pseudobasine, anonicotine, 2,4'-bipyridine (internal standard), the above standard samples are chromatographically pure grade, purchased from Acros Organics Company in the United States, all standard samples Store in a refrigerator below 4°C for later use;
[0028] (3) Reagents. Ethyl acetate (chromatographically pure, SIGMA company), 5wt% sodium hydroxide solution, internal standard solution (2,4'-bipyridine with a concentration of 2000 μg / mL, using ethyl acetate as a solvent);
[0029] (4) Instruments. RM20 / CS turntable...
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Abstract
The invention discloses a method used for determining puff-by-puff alkaloids in cigarette main stream smoke. According to the method, an improved smoking machine is adopted; cigarettes to be tested are smoked successively; magnetic valves on a gas circuit are turned on respectively; particular matters in the smoke of the cigarettes to be tested are collected by total particular matter filter element collectors; filter elements are subjected to ultrasonic extraction and centrifugation, an obtained supernatant liquid is subjected to GC / MS analysis; and internal standard method quantitative analysis is carried out using five alkaloid standard samples. The improved smoking machine is provided with ten magnetic valves and ten total particular matter filter element collectors; smoking processes of the improved smoking machine is controlled by a control system; collection of the particular matters of each puff of twenty cigarettes is realized; the method high in repeatability and recovery rate when the method is used for determining alkaloids of particulates of smoke gas each puff; determination is convenient; efficiency is high; and practicality is high.
Description
technical field [0001] The invention belongs to the field of cigarette quality detection, and in particular relates to a method for measuring puff-by-puff alkaloids in mainstream smoke of cigarettes. Background technique [0002] Alkaloids are important components that affect the quality of tobacco leaves. In addition to nicotine, the main alkaloids in tobacco include nornicotine, mesmin, pseudobasine and neonicotinoid. Nicotine can directly stimulate the central nervous system of the human body and produce physiological reactions; nornicotine has a negative impact on the taste of cigarettes; mesmin has a mouse smell, which seriously affects the taste of cigarette products; alkali. Alkaloids are one of the direct precursors of tobacco-specific nitrosamines, which are easily metabolized into alkaloids in the process of tobacco preparation and cigarette smoking, and then form carcinogenic tobacco-specific nitrosamines with nitrite, especially The conversion of nicotine to no...
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IPC IPC(8): G01N30/02
Inventor 印德春薄云川丁超于海洋殷延齐严静郜明陶海涛李少鹏
Owner CHINA TOBACCO JIANGSU INDAL