A kind of determination method of tobacco dry distillation flavor chemical composition
A technology of chemical composition and determination method, which is applied in the field of tobacco analysis, can solve problems such as large errors, and achieve the effect of accurate and reliable determination results and simple and fast determination methods
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Embodiment 1
[0044] Weigh 4g of shredded tobacco and put it into a tube furnace, heat it to 400°C, and keep the temperature constant for 2.5h. The flue gas produced by dry distillation is brought into the absorption bottle placed in the cold trap with nitrogen gas. The absorption bottle is pre-installed with 25mL of propylene glycol. The temperature of the cold trap is -15°C, the smoke condensate in the pipeline is washed out with 40mL propylene glycol, the absorption liquid in the absorption bottle is combined with the smoke condensate washed out in the pipeline, and the tobacco dry distillation flavor is obtained.
Embodiment 2
[0046] Weigh 4g of shredded tobacco and put it into a tube furnace, heat it to 500°C, and keep the temperature constant for 2.5h. Use nitrogen to bring the flue gas generated by dry distillation into an absorption bottle placed in a cold trap. The absorption bottle is pre-installed with 25mL of propylene glycol. The temperature of the cold trap is -15°C, the smoke condensate in the pipeline is washed out with 40mL propylene glycol, the absorption liquid in the absorption bottle is combined with the smoke condensate washed out in the pipeline, and the tobacco dry distillation flavor is obtained.
Embodiment 3
[0048] Weigh 4g of shredded tobacco and put it into a tube furnace, heat it to 600°C, and keep the temperature constant for 2.5h. Use nitrogen to bring the flue gas produced by dry distillation into an absorption bottle placed in a cold trap. The absorption bottle is pre-installed with 25mL of propylene glycol. The temperature of the cold trap is -15°C, the smoke condensate in the pipeline is washed out with 40mL propylene glycol, the absorption liquid in the absorption bottle is combined with the smoke condensate washed out in the pipeline, and the tobacco dry distillation flavor is obtained.
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