Method for rapid separation determination of nicotine in water

A technology of nicotine and water, which is applied in material separation, measuring devices, and analysis of materials, etc., can solve the problems of difficult investigation and evidence collection, strong concealment of tobacco manufacturing dens, etc., and achieves simple pre-treatment, low detection limit, and high confirmation Effect

Inactive Publication Date: 2013-03-20
CHINA TOBACCO FUJIAN IND +1
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the dens of tobacco counterfeiting are highly concealed, and the counterfeiting is generally difficult to investigate and obtain evidence. A method for quickly separating and measuring nicotine in water is provided.

Method used

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  • Method for rapid separation determination of nicotine in water
  • Method for rapid separation determination of nicotine in water
  • Method for rapid separation determination of nicotine in water

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Embodiment Construction

[0020] The water obtained from the suspected point was centrifugally filtered, separated by liquid chromatography column, and then eluted with methanol-water system. Finally, the possible fragments of nicotine were monitored by electrospray tandem triple quadrupole mass spectrometry.

[0021] Specific steps are as follows:

[0022] (1) Sample collection: representative water bodies obtained from suspect points, sealed for testing;

[0023] (2) Sample treatment: Shake the above sample well, take 10mL of the sample and centrifuge (7800r / min) for 15min, then take the clear liquid and filter it through the mixed fiber microporous membrane, discard the first 5mL, and keep 1mL of the sample for testing;

[0024] (3) Chromatographic separation: the centrifuged sample is first separated by a liquid chromatographic column, and the chromatographic column used for the separation is a reversed-phase C18 chromatographic column; and then eluted with methanol-water system. Chromatographic c...

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Abstract

The present invention provides a method for rapid separation determination of nicotine in water. According to the method, a sample is subjected to centrifugation filtration, is separated by using a liquid chromatography column, and is eluted through a methanol-water system, electrospray tandem triple quadrupole mass spectrometry is adopted to monitor possibly-appearing nicotine fragments, and nicotine in water is rapidly separated and determined within 6 min. The method has characteristics of low detection limit, high accuracy, easy operation, and rapidness, is applicable for investigation and evidence collection works of tobacco counterfeiting, and has wide application and promotion values.

Description

technical field [0001] The invention relates to a method for rapidly separating and measuring nicotine in water. Background technique [0002] Cracking down on counterfeiting dens is the focus of tobacco counterfeiting work. However, with the improvement of the network and specialization of the production and sales of counterfeit cigarettes, the concealment of the counterfeit dens has become stronger and stronger, resulting in the difficulty of investigating and obtaining evidence in tobacco counterfeiting. Nicotine is a unique alkaloid in tobacco, and its content is not only an important indicator for evaluating the quality of tobacco leaves and cigarettes, but also a basis for judging whether there is a tobacco product production at a suspected point. The water body obtained from the suspect point is tested by a certain method. If there is a certain amount of nicotine, it can be preliminarily speculated that there may be tobacco product production in the suspect point. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 张建平邓其馨黄朝章谢卫许寒春赵艺强吴清辉苏明亮白雪平蔡国华陈哲峰
Owner CHINA TOBACCO FUJIAN IND
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