Method for preparing standard substance for detecting residual amount of ketones in paper for cigarettes

A standard substance and residue technology, applied in the field of physical and chemical inspection of cigarette packaging materials, can solve problems such as errors and cumbersome operations, achieve good uniformity and stability, accurate analysis results, and reduce interference factors

Active Publication Date: 2013-01-16
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to use the base paper of cigarette paper as a matrix calibration agent, and the operation is cumbersome. If a reagent with a low boiling point is used as a solvent to prepare a standard solution, unnecessary analysis errors

Method used

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  • Method for preparing standard substance for detecting residual amount of ketones in paper for cigarettes
  • Method for preparing standard substance for detecting residual amount of ketones in paper for cigarettes
  • Method for preparing standard substance for detecting residual amount of ketones in paper for cigarettes

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preparation example Construction

[0017] A kind of preparation method for detecting ketone residue standard substance in cigarette paper of the present invention comprises the following steps:

[0018] (1) Solvent removal of water:

[0019] In this specific embodiment, glycerol triacetate produced by Bailingwei Technology Co., Ltd. is used as a solvent, and molecular sieves are used to remove the moisture in glycerol triacetate, and the moisture content after water removal is verified to be no more than 0.05%. The molecular sieve should be selected to be ketone-free Interfering products, for this reason, the 3A molecular sieve produced by Shanghai Tianhong Molecular Sieve Co., Ltd. is used in this specific embodiment.

[0020] (2) Preparation of standard materials:

[0021] According to the concentration requirements of the required standard substances, weigh the ketones in a certain volume of glycerol triacetate, shake well and spend overnight; the container used to prepare the mixed solution standard substa...

Embodiment

[0031] In this embodiment, the present invention is further described in detail by preparing a mixed solution of acetone, 1-butanone, 4-methyl-2-pentanone and cyclohexanone as standard substances for detecting the residual amount of ketones in cigarette paper.

[0032] (1) Solvent removal of water:

[0033] Glyceryl triacetate was selected as the solvent, and the initial moisture content in glycerol triacetate was determined to be 0.089% according to GB / T 6283-2008 "Determination of Moisture Content in Chemical Products Karl Fischer Method", and the static water absorption of 3A molecular sieves was greater than or equal to 20%, glyceryl triacetate density 1.164g / mL, add 50g (about 5 times the amount) of 3A molecular sieve to 2000mL glycerol triacetate, shake it fully and let it stand for 48 hours, then measure the moisture content of glycerin triacetate again to be 0.027 %. Carry out gas chromatography-mass spectrometry analysis to triacetin after water removal, ensure that ...

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Abstract

The invention discloses a method for preparing a standard substance for detecting the residual amount of ketones in the paper for cigarettes. The method comprises the steps of removing the moisture in glyceryl triacetate as a solvent, respectively weighing and uniformly mixing the relevant acetic esters in glyceryl triacetate according to the concentration of the required standard substance, and preparing into a standard substance of a ketone mixed solution; sealing the standard substance of the mixed solution into a headspace bottle under the nitrogen protection; detecting the uniformity and the stability of the standard substance of the ketone mixed solution, and using a single ketone certified reference material to perform constant value for the obtained standard substance of the mixed solution. The standard substance for detecting the residual amount of acetic esters in the paper for cigarettes provided by the invention uses the standard substance of the glyceryl triacetate as a solvent, so that the detection working efficiency is improved and the detection of the residual amount of ketones in the paper for cigarettes is accurate.

Description

technical field [0001] The invention relates to the preparation of a standard substance for detecting ketone residues in cigarette paper, and belongs to the technical field of physical and chemical testing of cigarette packaging materials. Background technique [0002] The residual ketones in cigarette paper (wrapping paper for strips and boxes, tipping paper, inner lining paper) mainly come from printing paper, ink and solvent, and printing process. These ketones may affect the quality of cigarette products. For this reason, the tobacco industry has formulated YC 263-2008 "Limits of Volatile Organic Compounds in Cigarette Rod and Packing Paper", which stipulates the maximum residual amount of ketones in cigarette paper. Tobacco industry and related industries generally adopt headspace gas chromatography technology and external standard method for the determination of ketones remaining in cigarette paper. This method needs to use the base paper of cigarette paper as a matri...

Claims

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Application Information

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IPC IPC(8): G01N33/64
Inventor 蒋锦锋陈连芳陈宸马明李栋范黎杨国涛
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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