Method for detecting migration amounts of volatile organic compounds in paper packaging material to dry simulants

A technology for volatile organic compounds and paper packaging materials, which is used in material separation, analysis materials, measuring devices, etc., can solve the problem that the migration amount cannot be directly detected, and improve the environmental friendliness of the method, the detection sensitivity, and the portability. sexual effect

Pending Publication Date: 2020-02-11
SHANGHAI TOBACCO GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a detection method for the migration of volatile organic co

Method used

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  • Method for detecting migration amounts of volatile organic compounds in paper packaging material to dry simulants
  • Method for detecting migration amounts of volatile organic compounds in paper packaging material to dry simulants
  • Method for detecting migration amounts of volatile organic compounds in paper packaging material to dry simulants

Examples

Experimental program
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Effect test

Embodiment 1

[0041] 1. Establish a standard working curve

[0042] Pipette 100mg of ethanol, 15mg of isopropanol, 15mg of n-propanol, 150mg of ethyl acetate, 500mg of 1-methoxy-2-propanol, and 100mg of n-propyl acetate into a 100mL volumetric flask, dilute to volume with water, and prepare Primary standard stock solution, sealed and stored away from light at 0℃~4℃.

[0043] Pipette 5mL of primary standard stock solution into a 100mL volumetric flask, dilute to volume with water, prepare secondary standard stock solution, and store in airtight and dark-proof conditions at 0°C to 4°C.

[0044]Accurately pipette 4mL, 2mL, 1.5mL, 1mL, 0.5mL, and 0.25mL of secondary standard stock solutions into a 100mL volumetric flask, and dilute to volume with water to obtain the standard working solutions of the six-level series.

[0045] Weigh 1g of Tenax in each of the six purging bottles, add 5mL of serial standard working solutions, shake on a vortex shaker (2000r / min) for 5min, centrifuge (5000r / min) ...

Embodiment 2

[0065] 1. Establish a standard working curve

[0066] Pipette 100mg of ethanol, 15mg of isopropanol, 15mg of n-propanol, 150mg of ethyl acetate, 500mg of 1-methoxy-2-propanol, and 100mg of n-propyl acetate into a 100mL volumetric flask, dilute to volume with water, and prepare primary Standard stock solution, sealed and stored away from light at 0℃~4℃.

[0067] Pipette 5mL of primary standard stock solution into a 100mL volumetric flask, dilute to volume with water, prepare secondary standard stock solution, and store in airtight and dark-proof conditions at 0°C to 4°C.

[0068] Accurately pipette 4mL, 2mL, 1.5mL, 1mL, 0.5mL, and 0.25mL of secondary standard stock solutions into 100mL volumetric flasks, and dilute to volume with water to obtain the sixth-level series standard working solutions.

[0069] Weigh 1g of Tenax in each of the six purging bottles, add 5mL series of standard working solutions, shake on a vortex shaker (2000r / min) for 5min, centrifuge (5000r / min) for 1...

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Abstract

The invention provides a method for detecting migration amounts of volatile organic compounds in a paper packaging material to dry stimulants. According to the method, a standard sample and a to-be-detected sample are respectively used for trapping the volatile organic compounds by adopting a purging and trapping method, the standard sample is a standard working solution formed by respectively adding a certain amount of dry simulants into a series of volatile organic compounds with different concentrations, the volatile organic compounds comprise ethanol, isopropanol, n-propanol, ethyl acetate, 1-methoxy-2-propanol and n-propyl acetate, the to-be-detected sample is an aqueous solution formed by adding the same amount of dry stimulant into water after migration treatment is carried out by adopting the paper packaging material, and the addition volume of the water is the same as the addition volume of the volatile organic compounds during the preparation of the standard sample. The method improves the detection sensitivity, and is simple and environmentally friendly.

Description

technical field [0001] The invention relates to a technology for detecting chemical components in paper packaging materials, in particular to a method for detecting migration of volatile organic compounds in paper packaging materials. Background technique [0002] The detection of volatile organic compounds in printed packaging materials is crucial for monitoring the safety of printed packaging materials. At present, the detection of volatile organic compounds mainly uses headspace-gas chromatography, headspace-gas chromatography / mass spectrometry, etc. Among them, static headspace-gas chromatography / mass spectrometry has less matrix interference, simpler instruments, and fewer false positives. Advantages are the most widely used. However, if some harmful substances in printed packaging materials migrate into food, even at trace levels, they may endanger the health of consumers. However, static headspace-gas chromatography / mass spectrometry has low sensitivity and is not en...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 汪宣朱翔王蕾项佳凝徐文君
Owner SHANGHAI TOBACCO GRP CO LTD
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