Method for measuring transporting quantity of para-hydroxy benzaldehyde in food contact material

A technology of p-hydroxyanisole and food contact materials, which is applied in the field of analysis and detection, can solve problems that have not been reported, and achieve the effects of wide coverage, accurate and reliable quantitative results, and strong practicality

Inactive Publication Date: 2016-09-21
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no report on the detection of p-hydroxyanisole migration in food contact materials at home and abroad

Method used

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  • Method for measuring transporting quantity of para-hydroxy benzaldehyde in food contact material
  • Method for measuring transporting quantity of para-hydroxy benzaldehyde in food contact material
  • Method for measuring transporting quantity of para-hydroxy benzaldehyde in food contact material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Instruments and reagents:

[0039] Instruments: gas chromatography-tandem triple quadrupole mass spectrometer (GC-MS / MS), centrifuge, vortex oscillator.

[0040] Reagents: standard p-hydroxyanisole (purity ≥ 98%), deionized water, acetic acid (analytical grade), absolute ethanol, isooctane (chromatographic grade), tert-butyl methyl ether (chromatographic grade).

[0041] A method for measuring the migration of p-hydroxyanisole in food contact materials comprises the following steps:

[0042] Step 1, prepare standard working solution, food simulant test solution and blank test solution. The standard working solution is at least five concentrations of water-based and oily standard working solutions (isooctane) prepared from p-hydroxyanisole; / T 23296.1-2009 Food Contact Materials Restricted Substances in Plastics Specific Migration Tests and Content Determination Methods of Substances in Plastics to Food and Food Simulators and Guidelines for Selection of Exposure Condi...

Embodiment 2

[0075] A method for measuring the migration of p-hydroxyanisole in food contact materials is the same as in Example 1, except that:

[0076] Gas chromatography conditions:

[0077] (1) Chromatographic column: the coating is polymethylsiloxane material (5% phenyl 95% polydimethylarylene siloxane), the length of the chromatographic column is 60m; the inner diameter of the chromatographic column is 0.20mm; Thickness: 0.20μm;

[0078] (2) Injection volume: 0.8 μL;

[0079] (3) Temperature programming conditions: the initial temperature is 60°C, and the temperature is raised to 240°C at a rate of 20°C / min;

[0080] (4) Carrier gas flow rate: 0.8mL / min.

[0081] Triple quadrupole tandem mass spectrometry conditions:

[0082] (1) Ion source: electron bombardment ion source (EI);

[0083] (2) Ion source temperature: 250°C;

[0084] (3) Electron energy: 70eV;

[0085] (4) Carrier gas control mode: constant flow mode;

[0086] (5) Detection method: multiple ion reaction monitori...

Embodiment 3

[0094] A method for measuring the migration of p-hydroxyanisole in food contact materials is the same as in Example 1, except that:

[0095] Gas chromatography conditions:

[0096] (1) Chromatographic column: the coating is polydimethylsiloxane material, the length of the chromatographic column is 15m; the inner diameter of the chromatographic column is 0.32mm; the thickness of the coating film is 1μm;

[0097] (2) Injection volume: 2.0 μL;

[0098] (3) Temperature programming conditions: the initial temperature is 60°C, the temperature is raised to 180°C at a rate of 5°C / min, and kept for 2 minutes;

[0099] (4) Carrier gas flow rate: 2.0mL / min.

[0100] Triple quadrupole tandem mass spectrometry conditions:

[0101] (1) Ion source: electron bombardment ion source (EI);

[0102] (2) Ion source temperature: 250°C;

[0103] (3) Electron energy: 70eV;

[0104] (4) Carrier gas control mode: constant flow mode;

[0105] (5) Detection method: multiple ion reaction monitoring...

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Abstract

The invention relates to a method for measuring transporting quantity of para-hydroxy benzaldehyde in a food contact material, and belongs to the technical field of analysis and detection. The method for measuring transporting quantity of para-hydroxy benzaldehyde in the food contact material is set up, quantification results are accurate and reliable, and accuracy, stability and the automation degree are high. According to stipulations of national standards in China, feed simulants are selected to simulate different foods for transporting tests, and the feed simulants comprise water, an acetic acid solution with the mass concentration of 3%, an ethanol solution with the volume fraction of 10% and isooctane which represent water-based, acidic, alcoholic and lipid foods respectively; the method is wide in coverage and high in practicability.

Description

technical field [0001] The invention relates to a method for measuring the migration amount of p-hydroxyanisole in food contact materials, belonging to the technical field of analysis and detection. Background technique [0002] p-Hydroxyanisole (CAS number, 150-76-5) is an important chemical and organic synthesis raw material, which can be used to synthesize dyes and so on. Its application in plastic products is mainly used as a polymerization inhibitor for vinyl-type plastic monomers, ultraviolet inhibitors, etc., and can also be used as an anti-aging agent, antioxidant, etc., which can effectively delay the oxidation and decomposition of plastic products. For plastic products used in food contact, p-hydroxyanisole may migrate from the plastic products into the food. 4-Hydroxyanisole is irritating to eyes, skin, mucous membranes and upper respiratory tract. Prolonged contact can damage eyes, have strong irritating effect or cause burns. The "GB 9685 National Food Safety ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/025
Inventor 吴泽颖
Owner CHANGZHOU INST OF TECH
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