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Method for preparing standard substance for detecting residual amount of acetic esters 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 the problems of cumbersome operation, no acetate solution, etc., to reduce interference factors, improve detection efficiency, good uniformity and stability. Effect

Inactive 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 for matrix correction, and the operation is cumbersome. If a standard solution is prepared with a reagent with a low boiling point as a solvent, it will inevitably bring unnecessary analysis errors, and there is currently no standard substance for acetate solutions in my country.

Method used

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

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preparation example Construction

[0017] The preparation method of the present invention for detecting the residual standard substance of acetates in cigarette paper comprises the following steps:

[0018] (1) Solvent removal of water:

[0019] In this embodiment, the high-purity glycerol triacetate produced by Bailingwei Technology Co., Ltd. is used as a solvent, and the moisture in the glycerol triacetate is removed by molecular sieves, and the moisture content after water removal is verified to be no more than 0.05%. As a product without interference from esters, the 3A molecular sieve produced by Shanghai Tianhong Molecular Sieve Co., Ltd. is used in this embodiment.

[0020] (2) Preparation of standard materials:

[0021] According to the concentration requirements of the required standard substance, weigh the acetates and dissolve them in a certain volume of glycerol triacetate, and shake them up overnight. Among them, the acetates can be selected from ethyl acetate, n-propyl acetate, isopropyl acetate ...

Embodiment

[0031] In this embodiment, the present invention is further described in detail by preparing standard substances of ethyl acetate, n-propyl acetate, isopropyl acetate and n-butyl acetate mixed solution for detection of acetate residues 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 ethyl...

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Abstract

The invention discloses a method for preparing standard substance for detecting residual amount of acetic esters in paper for cigarettes. The method comprises the steps of removing the moisture in glyceryl triacetate, respectively weighing and uniformly mixing the relevant acetic esters in glyceryl triacetate according to the concentration of the required standard substance, packaging the standard substance into a headspace bottle under the nitrogen protection, and then detecting the uniformity and the stability of acetic esters in the standard substance, and using single acetic ester certified reference material to perform a constant value for the obtained standard substance. The standard substance for detecting residual amount of acetic esters in paper for cigarettes provided by the invention has good uniformity and stability, and the standard substance is preserved for not less than 6 months in a freezer at below 18 DEG. C, so that the efficiency of the detection work is improved, the interference in the analysis is reduced, and the detection of the residual amount of acetic esters in the paper for cigarettes is accurate.

Description

technical field [0001] The invention relates to a preparation method for a standard substance used for detecting acetate residues in cigarette paper, and belongs to the technical field of physical and chemical testing of cigarette packaging materials. Background technique [0002] Acetate residues in cigarette paper (wrapping paper for strips and boxes, tipping paper, inner lining paper) mainly come from printing paper, ink and solvents. These acetates 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 acetates in cigarette paper. Tobacco industry and its related industries generally use headspace gas chromatography technology and external standard method for the determination of acetate residues in cigarette paper. This method needs to use the base paper of cigarette paper for matrix calibrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06
Inventor 蒋锦锋陈连芳范黎韩云辉胡启秀赵继俊杨荣超苗芊
Owner ZHENGZHOU TOBACCO RES INST OF CNTC