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Determination method of harmful organic substance residue in toy sample

A determination method and technology of organic matter, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of sensitive method, improved efficiency and high application value

Inactive Publication Date: 2012-07-25
CHINESE ACAD OF INSPECTION & QUARANTINE
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  • Abstract
  • Description
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Problems solved by technology

However, there are few reports in domestic and foreign literature and standards on the determination of the residual amount of substances such as ethylene glycol monoethyl ether in toys.

Method used

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  • Determination method of harmful organic substance residue in toy sample
  • Determination method of harmful organic substance residue in toy sample
  • Determination method of harmful organic substance residue in toy sample

Examples

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Embodiment Construction

[0016] For further illustrating the present invention, specifically illustrate in conjunction with following examples:

[0017] Simultaneous determination of ethylene glycol monoethyl ether, styrene, trimethylbenzene, isophorone, 2-methoxy ethyl acetate, 2-ethoxy ethyl acetate, cyclohexanone, bis(2-methoxy The assay method of these 9 kinds of substances of ethyl) ether and nitrobenzene, comprises the following steps:

[0018] 1. Sample pretreatment

[0019] (1) Crush the toy sample with a cutting grinder or cut it with scissors, weigh 1.0g of the sample into a 50mL conical flask, add 10mL of the corresponding solvent (ABS plastic is dissolved in acetone, PS plastic is dissolved in dichloromethane, PVC plastic dissolved in tetrahydrofuran), and ultrasonically oscillated for 15 min. After the dissolution is complete, add 10mL of methanol dropwise, shake until the plastic matrix is ​​completely precipitated, transfer the solution to a centrifuge tube, rinse the Erlenmeyer flask...

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Abstract

The invention adopts gas chromatography-mass spectrometry (GC-MS) to originally simultaneously determine residual contents of 9 kinds of organic substances in toy, including ethylene glycol monoethyl ether (EGEE), styrene, trimethylbenzene, isophorone, 2-methoxyethyl acetate, 2-ethoxyethyl acetate, cyclohexanone, bis(2-methoxyethyl) ether, and nitrobenzene. Common detection device is adopted in the method. The method provided by the invention has the advantages of easy popularization, simultaneous detection to save time, improved efficiency, low cost, high detection rate and sensitivity, and high application value in toy production and quality detection.

Description

technical field [0001] The invention relates to a method for determining residues of harmful organic substances, in particular to a method for simultaneously measuring residues of nine kinds of harmful organic substances in toy samples. Background technique [0002] China is currently a major exporter of toys, and nearly two-thirds of the world's toys are produced in China. At present, ensuring the quality and safety of toy products has become the key to the development of my country's toy industry, and chemical hazards caused by toxic and harmful chemicals are an important factor affecting the quality and safety of toy products. [0003] Nine kinds of substances such as ethylene glycol monoethyl ether involved in the present invention are often used in the production process of toys. For example, styrene as a monomer is widely used in the manufacture of polystyrene (PS), acrylonitrile-butadiene-styrene terpolymer (ABS) and other toy materials; ethylene glycol monoethyl eth...

Claims

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Application Information

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IPC IPC(8): G01N30/02
Inventor 吕庆张庆白桦康苏媛王超
Owner CHINESE ACAD OF INSPECTION & QUARANTINE
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