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Method for simultaneously determining migration amounts of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and food contact products

A food contact material, ethylenediamine technology, applied in the direction of measuring devices, material separation, analysis of materials, etc., can solve the problems of not being disclosed, and achieve the effect of low detection limit, simple operation and stable method

Active Publication Date: 2019-08-16
NINGBO ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no relevant research on the simultaneous determination of the migration of ethylenediamine, 1,2-propylenediamine and 1,6-hexamethylenediamine in food contact materials and products based on liquid chromatography tandem mass spectrometry at home and abroad to report

Method used

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  • Method for simultaneously determining migration amounts of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and food contact products
  • Method for simultaneously determining migration amounts of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and food contact products

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specific Embodiment

[0042] 1. Reagent preparation and instruments

[0043] 0.1 mol / L phenylisothiocyanate in acetonitrile solution: weigh 1.35g of phenylisothiocyanate, and dilute to 100mL with acetonitrile.

[0044] 1 mol / L triethylamine in acetonitrile solution: weigh 10.1 g of triethylamine, and dilute to 100 mL with acetonitrile.

[0045] 0.1M hydrochloric acid: Dissolve 0.86mL concentrated hydrochloric acid in a 100mL volumetric flask.

[0046]10μg / mL ethylenediamine, 1,2-propylenediamine and 1,6-hexanediamine mixed standard solution preparation: take 100 μL each of 1mg / mL ethylenediamine, 1mg / mL 1,2-propylenediamine and 1mg After mixing the 1,6-hexanediamine standard solution per mL, dilute to 10 mL with acetonitrile, and prepare 1 mg / mL ethylenediamine standard solution: weigh 10 mg of ethylenediamine standard substance, and dilute to 10 mL with acetonitrile; Preparation of 1mg / mL 1,2-propylenediamine standard solution: weigh 10 mg of 1,2-propylenediamine standard substance, and dilute t...

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Abstract

The invention discloses a method for simultaneously determining the migration amounts of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and products. The method is characterized by comprising the following steps of: obtaining a food simulant test solution from the food contact materials and food simulants through a migration experiment; placing the food simulant test solution in a plastic tube, adding a phenyl isothiocyanate acetonitrile solution and a triethylamine acetonitrile solution, mixing uniformly by swirling, carrying out water bath, and centrifuging the mixture through a filter membrane; making a standard curve; carrying out liquid chromatography separation and mass spectrum detection; and calculating the standard curve to obtain the concentration of ethylenediamine, 1,2-propanediamine and 1,6-hexanediamine in the test solution. According to the calculation method of the migration amounts of the to-be-measured object in the food contact material and the product thereof, the migration amounts of ethylenediamine, 1,2-propanediamine and 1,6-hexanediamine in the food contact materials and the products thereof are obtained. The method forsimultaneously determining the migration amounts of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and products has the advantages of simple operation, high anti-interference capacity and low detection limit.

Description

technical field [0001] The invention relates to a method for simultaneously measuring the migration of ethylenediamine, propylenediamine and hexamethylenediamine in food contact materials and products based on liquid chromatography tandem mass spectrometry. Background technique [0002] Ethylenediamine, 1,2-propanediamine and 1,6-hexamethylenediamine are important chemical raw materials, widely used in production and life, and are often used in the production of daily necessities such as food contact materials. The development of detection methods for the migration of ethylenediamine, 1,2-propylenediamine and 1,6-hexamethylenediamine in food contact materials has important practical significance for ensuring people's food safety. [0003] Ethylenediamine is a colorless and transparent viscous liquid with ammonia odor, poisonous and flammable. It is widely used in the manufacture of organic compounds, polymer compounds, drugs, dyes and pesticides. The existing detection meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 许迪明陈树兵方科益湛嘉李双曹国洲
Owner NINGBO ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
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