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Method for extracting residual solvent in packaging material, method for detecting residual solvent, kit for detecting residual solvent, and use of kit

A technology for packaging materials and residual solvents, applied in the field of analysis, can solve problems such as the inability to find a blank matrix for it, the inability to detect residual solvents in special-shaped packaging materials for cigarettes, and the hardness of materials

Active Publication Date: 2016-08-17
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the special-shaped packaging material is formed by bonding multiple layers of cardboard. The material is hard and thick, and cannot be rolled into the headspace bottle for pretreatment, and it is impossible to find a corresponding blank matrix for it. Therefore, the current detection method cannot detect smoke. Use residual solvents in special-shaped packaging materials

Method used

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  • Method for extracting residual solvent in packaging material, method for detecting residual solvent, kit for detecting residual solvent, and use of kit
  • Method for extracting residual solvent in packaging material, method for detecting residual solvent, kit for detecting residual solvent, and use of kit
  • Method for extracting residual solvent in packaging material, method for detecting residual solvent, kit for detecting residual solvent, and use of kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] Example 1 Detection of special-shaped packaging materials for cigarettes

[0112] 1. Instruments and reagents

[0113] Detection instrument: PerkinElmer Clarus 600 gas chromatograph, PerkinElmer Clarus600MS detector, METTLER TOLEDO BT224S (sensitivity 0.1 mg).

[0114] Standard substances: benzene, toluene, ethylbenzene, xylene, styrene, ethanol, isopropanol, n-propanol, n-butanol, 1-methoxy-2-propanol, 1-ethoxy-2-propanol Alcohol, acetone, butanone, 4-methyl-2-pentanone, cyclohexanone, ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, all of analytical grade.

[0115] Extraction reagent: Methanol, analytically pure.

[0116] Internal standard stock solution: Weigh 0.105 g of 2-hexanone (analytically pure), dissolve it in 100 mL of methanol (analytical pure), and prepare a 1.05 mg / mL internal standard stock solution.

[0117] Internal standard solution: pipette 1 mL of internal standard stock solution into a 100 mL volumetric flask, dilute to the...

Embodiment 2

[0143] Embodiment 2 method detection limit

[0144] The qualitative detection limit when the signal-to-noise ratio (in full scan mode) is 3 is calculated by using the 4-level mixed standard solution (s4), and the qualitative detection limit when the signal-to-noise ratio (under the SIR mode) is 10 is calculated by using the 4-level mixed standard solution (s4) Quantitative detection limit. Qualitative and quantitative detection limit data are detailed in Table 2 above.

[0145] Drawn from Table 2, the qualitative detection limit of the inventive method is 0.021~0.441mg / L, and the quantitative detection limit is 0.006~0.229mg / L.

Embodiment 3

[0146] Embodiment 3 method linear correlation coefficient, repeatability and rate of recovery

[0147] Cut 40cm 2 (about 3g) No. 2 special-shaped packaging material for cigarettes in embodiment 1, accurately weighed to 0.0001g, add respectively the mixed standard solution of three kinds of concentrations of S1, S3, S5 and carry out method recovery rate test, calculate the recovery rate of each substance and the relative standard deviation (repeatability) between the measured values, the results are shown in Table 5.

[0148] table 5

[0149]

[0150] It can be concluded from Table 5 that the relative standard deviation of the measured values ​​of the detection method of the present invention is 0.45-3.72%, all below 5%, and the repeatability is good. The recoveries were 80.80-119.83%, all between 80% and 120%, indicating that this method has a higher recovery rate.

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Abstract

The invention belongs to the technical field of detection and analysis, and concretely relates to a method for extracting a residual solvent in a packaging material. The extraction method is characterized in that the packaging material is infiltrated in methanol to obtain an extract. The invention also relates to a method for detecting the residual solvent in the packaging material, and a kit for detecting the residual solvent in the packaging material. The extraction method, the detection method and the kit can be used to detect the residual solvent in the packaging material, and also can be used to carry out quality control on the packaging material.

Description

technical field [0001] The invention belongs to the technical field of analysis, and relates to an extraction method, a detection method, a detection kit and an application of residual solvents in packaging materials. Background technique [0002] Cigarette wrapping paper includes label paper, lining paper, tipping paper and frame paper, etc. Among them, the trademark paper is divided into normal packaging materials and special-shaped packaging materials. The special-shaped packaging materials are packaged in multi-layer inner cavity hard box cigarettes. . [0003] The printing and gluing process of label paper will produce residual solvent, and if the content is too high, it will have a bad influence on the smoking taste of cigarettes. At present, the detection methods for residual solvents in general cigarette packaging materials are gas chromatography and gas chromatography-mass spectrometry, and the pretreatment methods include headspace method, solid phase microextrac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/025G01N2030/062
Inventor 黄惠贞梁晖谢卫张建平周培琛刘秀彩李巧灵黄朝章黄华发邓其馨刘泽春许寒春张鼎方
Owner CHINA TOBACCO FUJIAN IND
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