Method for testing transfer volumes of volatile and semi-volatile organic matters in paper and paperboard by taking Tenax as simulant by virtue of HS-GC/MS

A simulant and semi-volatile technology, applied in the field of analytical chemistry, can solve the problems of no operation steps and ineffective specific guidance experiments, etc., and achieve the effect of high sensitivity, easy operation and feasible method

Active Publication Date: 2015-01-07
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relevant domestic and foreign laws and regulations on the selection of simulants in the determination of migration of food contact materials only stipulate simulants for water-based, acidic, ethanol and fatty foods, and there are no simulants for dry foods. For dry food simulants The selection and the specific operation of the migration experiment are only outline regulations, without specific operation steps, and cannot effectively guide the experiment. Therefore, the establishment of the migration measurement of volatile and semi-volatile organic compounds in paper and cardboard that is in contact with dry food Models and methods are necessary

Method used

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  • Method for testing transfer volumes of volatile and semi-volatile organic matters in paper and paperboard by taking Tenax as simulant by virtue of HS-GC/MS
  • Method for testing transfer volumes of volatile and semi-volatile organic matters in paper and paperboard by taking Tenax as simulant by virtue of HS-GC/MS
  • Method for testing transfer volumes of volatile and semi-volatile organic matters in paper and paperboard by taking Tenax as simulant by virtue of HS-GC/MS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Tenax is used as a simulant HS-GC / MS to determine the migration of volatile and semi-volatile organic compounds in paper and board, including the following steps:

[0037] Step (1), sample preparation and assembly: cut and prepare 0.6 dm2 Box-packed white cardboard sample, as a mock sample, evenly spread 2.5 g Tenax on a small glass petri dish, the sample is covered on it, and the contact surface with the cigarette faces Tenax, then cover it with a large glass petri dish and invert the petri dish , that is to prepare the mock sample; at the same time, make a blank sample. The preparation method of the blank sample is to prepare another set of the same petri dish, evenly spread the same amount of Tenax in the mock sample on the small glass petri dish, and then use a large glass petri dish Invert the petri dish after covering; wherein, the outer diameter of the small glass petri dish used is 88 mm, the inner diameter of the large glass petri dish is 89 mm, and the large gl...

Embodiment 2

[0046] Tenax is used as a simulant HS-GC / MS to determine the migration of volatile and semi-volatile organic compounds in paper and board, including the following steps:

[0047] Step (1), sample preparation and assembly: cut and prepare 1.0 dm 2 Cardboard sample, as a mock sample, evenly spread 5.0 g of Tenax on a small glass petri dish, cover the sample on top, and the contact surface with the cigarette faces Tenax, then cover it with a large glass petri dish and invert the petri dish, and it is ready To simulate the sample, make two samples as the simulated sample, and make a blank sample at the same time. The preparation method of the blank sample is to prepare another set of the same petri dish, evenly spread the same amount of Tenax in the simulated sample on a small glass petri dish, and then use Invert the Petri dish after the large glass Petri dish is covered;

[0048] Step (2), simulation test: Simultaneously place the simulated sample and the blank sample in an ove...

Embodiment 3

[0053] Tenax is used as a simulant HS-GC / MS to determine the migration of volatile and semi-volatile organic compounds in paper and board, including the following steps:

[0054] Step (1), sample preparation and assembly: cut and prepare 0.4 dm 2 Pack the coated paper samples in boxes and make mock samples. Spread the sample on the bottom of the weighing bottle, with the food contact surface facing up, spread 2.0 g of Tenax evenly on the top of the sample, cover the weighing bottle cap, and make a blank sample at the same time, the preparation method of the blank sample is to prepare another The same weighing bottle, evenly spread the same amount of Tenax as in the mock sample, and cover the weighing bottle cap;

[0055] Step (2), simulated test: place the simulated sample and the blank sample in an oven preheated to 100°C at the same time, keep the temperature at a constant temperature for 24 hours, and cool to room temperature after completion;

[0056] Step (3), determina...

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Abstract

The invention relates to a method for testing transfer volumes of specific volatile and semi-volatile organic matters in paper and a paperboard, belongs to the technical field of analytic chemistry, and particularly relates to the method for directly testing transferred volatile and semi-volatile compounds by taking Tenax as the simulant by virtue of a headspace gas chromatography-mass spectrometry (HS-GC/MS). The method comprises the following steps: (1) preparing a simulation sample, assembling, and covering the surface of a to-be-tested object with the Tenax; (2) simulating the assembled sample in a normal drying oven under a temperature testing condition for required time; (3) directly analyzing a simulant by virtue of the HS-GC/MS, so as to obtain the transfer volumes. The method can be used for effectively testing the transfer volumes of the specific volatile and semi-volatile organic matters in the paper and the paperboard, is feasible, easy to operate, accurate and sensitive and has popularization and application values.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry and relates to a method for measuring the migration of specific volatile and semi-volatile substances in paper and cardboard, in particular to using Tenax as a simulant and headspace gas chromatography-mass spectrometry to directly measure the migration of volatile and semi-volatile substances. volatile compounds. Background technique [0002] As a traditional packaging material, paper packaging materials have been used more and more in recent years due to their environmental protection and other advantages. However, base paper, the main raw material of packaging paper or cardboard, and inks containing harmful components such as benzene and alkanes are used in the packaging and printing process. Solvents and auxiliary materials, etc., have the possibility of contamination by impurities such as volatile and semi-volatile organic compounds. Due to their volatility, these substances are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 司晓喜朱瑞芝张凤梅刘志华张涛申钦鹏刘春波王昆淼何沛杨光宇苏钟璧
Owner CHINA TOBACCO YUNNAN IND
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