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Preparation method and application of solid-phase micro-extraction probe for volatile components in cigarette glue

A technology of volatile components and cigarette glue, which is applied in the field of solid-phase microextraction probe preparation, can solve the problems of complicated operation, time-consuming, complicated pretreatment process, etc., and achieve the goal of improving extraction selectivity, extraction efficiency and accurate detection Effect

Active Publication Date: 2019-12-13
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the fact that there are many types of volatile compounds in the tobacco water-based adhesive, and the boiling point difference between the compounds is large, the chromatographic separation of various compounds can be carried out well through the temperature program of gas chromatography; in addition, GC-MS has a relatively complete database , the unknown volatile components in the cigarette glue can be quickly characterized by searching the database; however, due to the high viscosity of the adhesive itself, and the relatively low content of some volatile components in the cigarette glue, the The pretreatment process of the target components in the reagent is usually complicated
For example, some highly toxic organic solvents need to be used in the liquid-liquid extraction process, and the extraction solvents used for different types of compounds are different or the target components need to be derivatized. The operation is complicated, time-consuming, and harmful to the environment. , and the inability to simultaneously extract various components in the tobacco water-based adhesive is the biggest obstacle

Method used

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  • Preparation method and application of solid-phase micro-extraction probe for volatile components in cigarette glue
  • Preparation method and application of solid-phase micro-extraction probe for volatile components in cigarette glue
  • Preparation method and application of solid-phase micro-extraction probe for volatile components in cigarette glue

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A method for preparing a solid-phase microextraction probe of volatile components in cigarette glue, comprising the following steps:

[0020] (1) Put a 5cm-long quartz fiber into a strong acid and heat it at a constant temperature of 70°C for 0.5h. After washing the quartz fiber, the concentration is 1mol L -1 soaked in strong alkali solution for 0.5h, and then in a concentration of 0.1 mol•L -1 Soak in dilute hydrochloric acid;

[0021] (2) Put the quartz fiber and melamine treated with strong acid, strong alkali and dilute hydrochloric acid into the crucible, then put the crucible into the furnace, heat up to 550°C at a rate of 4°C / min, and keep it for 1 hour to obtain C 3 N 4 coated quartz fibers;

[0022] (3) Bond the C3N4 coated quartz fiber to the stainless steel wire at the end of the handle with a solid binder, and then age at 230 °C for 30 min to obtain a solid phase microextraction probe. The solid binder is epoxy resin, 3, 3-Dimethyl-4,4-diaminodicyclohex...

Embodiment 2

[0029] The invention is a method for preparing a solid-phase microextraction probe of volatile components in cigarette glue, comprising the following steps:

[0030] (1) Put the 1-10cm long quartz fiber into strong acid and heat it at a constant temperature of 75°C for 1 hour, wash the quartz fiber and then put it in a concentration of 1.5 mol L -1 Soak in a strong alkaline solution for 1h, and then in a concentration of 0.1 mol•L-1 Soak in dilute hydrochloric acid;

[0031] (2) Put the quartz fiber and melamine treated with strong acid, strong alkali and dilute hydrochloric acid into the crucible, then put the crucible into the furnace, heat up to 600°C at a speed of 5°C / min, and keep it for 1.5h to obtain C 3 N 4 coated quartz fibers;

[0032] (3) Bond the C3N4 coated quartz fiber to the stainless steel wire at the end of the handle with a solid binder, and then age at 230 °C for 35 min to obtain a solid phase microextraction probe. The solid binder is epoxy resin, 3, 3-D...

Embodiment 3

[0038] The invention is a method for preparing a solid-phase microextraction probe of volatile components in cigarette glue, comprising the following steps:

[0039] (1) Put the 1-10cm long quartz fiber into strong acid and heat it at a constant temperature of 72°C for 0.7h. After washing the quartz fiber, the concentration is 1.2mol L -1 Soak in the strong alkali solution for 40min, and then in the concentration of 0.1mol•L -1 Soak in dilute hydrochloric acid;

[0040] (2) Put the quartz fiber and melamine treated with strong acid, strong alkali and dilute hydrochloric acid into the crucible, then put the crucible into the furnace, heat up to 580°C at a speed of 5°C / min, and keep it for 1.2h to obtain C 3 N 4 coated quartz fibers;

[0041] (3) C with a solid binder 3 N 4 The coated quartz fiber was bonded to the stainless steel wire at the end of the handle, and then aged at 230 °C for 32 min to obtain a solid phase microextraction probe. The solid binder was epoxy resin...

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Abstract

The invention provides a preparation method and application of a solid-phase micro-extraction probe for volatile components in cigarette glue and relates to the technical field of solid-phase extraction. The preparation method of a solid-phase micro-extraction probe for volatile components in cigarette glue comprises the following steps of (1) putting quartz fibers into strong acid, heating for 0.5 to 1 hour, washing the quartz fibers, soaking the quartz fibers in a strong alkali solution for 0.5 to 1 hour and then soaking the quartz fibers in diluted hydrochloric acid, (2) putting the quartzfibers and melamine into a crucible, then putting the crucible into a furnace, heating to 550 to 600 DEG C, and carrying out heat preservation to obtain C3N4 coated quartz fibers, and (3) adhering theC3N4 coated quartz fibers to a stainless steel wire at a tail end of a handle by using a solid adhesive and then aging at 230 DEG C for 30 to 35 minutes to obtain the solid-phase micro-extraction probe. The method has the advantages that carbon nitride is used as an extraction fiber coating, so that the extraction selectivity and extraction efficiency of a water-based adhesive for cigarettes areimproved, various volatile components in the water-based adhesive for the cigarettes can be detected at the same time, and the content of harmful substances can be detected more accurately.

Description

technical field [0001] The invention relates to the technical field of solid-phase extraction, in particular to a preparation method and application of a solid-phase micro-extraction probe for volatile components in tobacco gum. Background technique [0002] Smoking glue is an important auxiliary material for smoking, and its safety has attracted people's attention. At present, there are various types of cigarette adhesives on the market, with various functions, and different types of cigarette adhesives have different adhesive components. These cigarette glues play an important role in the production of cigarettes, such as: for the bonding of cigarette paper, filter cigarette holders, cigarette wrapping paper, etc., such as mouthpiece glue, which is a polymer formed by the polymerization of vinyl acetate For vinyl acetate emulsion type adhesives, during the process of adhesive synthesis, vinyl acetate monomers, catalysts, additives and various solvents used may all remain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 魏敏余琼卫冯钰锜宋旭艳李冉王畹佳潘曦何昀潞
Owner HUBEI CHINA TOBACCO IND