Method for adsorbing tobacco-specific nitrosamines in tobacco power of snus

Abstract

The invention discloses a method for adsorbing tobacco-specific nitrosamines in tobacco power of snus. The method comprises the following steps that S1, the particle size of an adsorbing material foradsorbing the tobacco-specific nitrosamines (TSNA) is ground to 300-500 meshes for standby application; S2, an appropriate amount of water is added outside the tobacco power so that the moisture content of the tobacco power can be 30-50% to exhibit a wet state, and the treated tobacco power is sealed; S3, the adsorbing material is added to the treated tobacco power in the step S2 and evenly mixed,the sample is sealed and left for a period of time, so that the adsorbing material gradually adsorbs the TSNA in the tobacco power; and S4, after the adsorption is completed, the sample is dried in the air or dried by baking. Compared with the prior art, the method utilizes the wettability of the surface of the tobacco power to promote the high spread-dispersion of adsorbing particles, so that the TSNA in the tobacco power escapes outward, the adsorption performance of the adsorbing material on the TSNA is improved, energy and time are saved, environmental pollution is reduced, cost is reduced, and economic and social benefits are significant.

Description

technical field

[0001] The invention relates to a method for absorbing tobacco-specific nitrosamines in mouth-smoke tobacco powder, in particular to a method for highly spreading and dispersing a small amount of adsorption material particles in tobacco powder by using the characteristics of tobacco powder wetting and sticky surface. On the surface of the tobacco powder, through the "in-situ adsorption" method, when the tobacco-specific nitrosamines contained in the tobacco powder escape to the surface, the method of efficient adsorption and removal is immediately carried out. Background technique

[0002] Snus is a new direction for the development of tobacco products. It avoids smoking and burning of cigarettes to produce a variety of harmful poisons, causing smokers to be prone to lung cancer and other diseases, cigarette butts causing fires, polluting the environment, and second-hand smoke harming the surrounding people. Satisfy the smoker's demand for nicotine. The abo...

Examples

Embodiment 1

[0024] The water content of the used tobacco powder is generally about 10% (weight ratio, the same below) after determination. In view of this, 2 g of distilled water was added to 4 g of Burley tobacco powder and mixed thoroughly to obtain tobacco powder with a water content of about 40%, which was sealed and left to stand for more than 24 hours for later use.

[0025] At room temperature, weigh 300mg of tobacco powder A with a water content of 40% and 8mg of UK-made coconut shell activated carbon, and the prepared fine powder is 400 mesh adsorption material, fully mix in a closed container for 2min and let stand for 6h. Then, 20ml of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μm water filter membranes until the liquid can no longer be decanted, and the solution to be tested is sent to the LC-MS / MS instrument to detect its TSNA conten...

Embodiment 2

[0031] At room temperature, weigh 300 mg of tobacco powder C with a water content of 40% and 8 mg of French Picca activated carbon S23-NaOH fine powder (400 mesh) as adsorption materials, mix them in a closed container at room temperature for 1.5 min and let stand for 6 h. Then, 20 mL of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20 min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μ. .

[0032]The original TSNA content of tobacco dust C was about 50.97 μg / g. After "in-situ adsorption" of 400 mesh fine powder of French Picca activated carbon S23-NaOH with 4% added amount, the TSNA content of the tobacco powder was reduced to 29.74μ9.7, and about 42% were removed by adsorption.

[0033] The 400-mesh fine powder of French Picca activated carbon S23-NaOH with 4% addition was still used to carry out "in-situ adsorption" on the tobacco dust C, but after the addition of activated carbon, t...

Embodiment 3

[0040] At room temperature, weigh 300 mg of smoke dust C with a water content of 40% and 8 mg of British coconut shell activated carbon fine powder (400 mesh) adsorption material, mix in a closed container at room temperature for 1.5 min and let stand for 6 h. Then, 20 mL of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20 min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μm water filter membranes until the liquid can no longer be decanted, and the solution to be tested is sent to the LC-MS / MS instrument to detect its TSNA content.

[0041] The original TSNA content of tobacco dust C was about 50.97 μg / g. After the 400-mesh fine powder of British coconut shell activated carbon with 4% added amount was left to stand for "in-situ adsorption", the TSNA content of the tobacco powder was reduced to 35.54μ5.5, and about 30% was removed by adsorption.

[0042] After "in situ adsorption" treatme...

technical field

[0001] The invention relates to a method for absorbing tobacco-specific nitrosamines in mouth-smoke tobacco powder, in particular to a method for highly spreading and dispersing a small amount of adsorption material particles in tobacco powder by using the characteristics of tobacco powder wetting and sticky surface. On the surface of the tobacco powder, through the "in-situ adsorption" method, when the tobacco-specific nitrosamines contained in the tobacco powder escape to the surface, the method of efficient adsorption and removal is immediately carried out. Background technique

[0002] Snus is a new direction for the development of tobacco products. It avoids smoking and burning of cigarettes to produce a variety of harmful poisons, causing smokers to be prone to lung cancer and other diseases, cigarette butts causing fires, polluting the environment, and second-hand smoke harming the surrounding people. Satisfy the smoker's demand for nicotine. The abo...

Examples

Embodiment 1

[0024] The water content of the used tobacco powder is generally about 10% (weight ratio, the same below) after determination. In view of this, 2 g of distilled water was added to 4 g of Burley tobacco powder and mixed thoroughly to obtain tobacco powder with a water content of about 40%, which was sealed and left to stand for more than 24 hours for later use.

[0025] At room temperature, weigh 300mg of tobacco powder A with a water content of 40% and 8mg of UK-made coconut shell activated carbon, and the prepared fine powder is 400 mesh adsorption material, fully mix in a closed container for 2min and let stand for 6h. Then, 20ml of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μm water filter membranes until the liquid can no longer be decanted, and the solution to be tested is sent to the LC-MS / MS instrument to detect its TSNA conten...

Embodiment 2

[0031] At room temperature, weigh 300 mg of tobacco powder C with a water content of 40% and 8 mg of French Picca activated carbon S23-NaOH fine powder (400 mesh) as adsorption materials, mix them in a closed container at room temperature for 1.5 min and let stand for 6 h. Then, 20 mL of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20 min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μ. .

[0032]The original TSNA content of tobacco dust C was about 50.97 μg / g. After "in-situ adsorption" of 400 mesh fine powder of French Picca activated carbon S23-NaOH with 4% added amount, the TSNA content of the tobacco powder was reduced to 29.74μ9.7, and about 42% were removed by adsorption.

[0033] The 400-mesh fine powder of French Picca activated carbon S23-NaOH with 4% addition was still used to carry out "in-situ adsorption" on the tobacco dust C, but after the addition of activated carbon, t...

Embodiment 3

[0040] At room temperature, weigh 300 mg of smoke dust C with a water content of 40% and 8 mg of British coconut shell activated carbon fine powder (400 mesh) adsorption material, mix in a closed container at room temperature for 1.5 min and let stand for 6 h. Then, 20 mL of distilled water was added to seal it, and it was shaken on a shaker-absorbed for 20 min. Decant the upper layer solution into two 10mL syringes, and filter each 10mL syringe with three 0.45μm water filter membranes until the liquid can no longer be decanted, and the solution to be tested is sent to the LC-MS / MS instrument to detect its TSNA content.

[0041] The original TSNA content of tobacco dust C was about 50.97 μg / g. After the 400-mesh fine powder of British coconut shell activated carbon with 4% added amount was left to stand for "in-situ adsorption", the TSNA content of the tobacco powder was reduced to 35.54μ5.5, and about 30% was removed by adsorption.

[0042] After "in situ adsorption" treatme...

Images