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A method for the determination of halogenated hydrocarbons in the surface layer of synthetic materials in artificial track and field

A technique for synthesizing materials and measuring methods, applied in the direction of material separation, analyzing materials, measuring devices, etc., to achieve the effect of strong versatility, wide applicability and practical significance, and simple enrichment operation

Inactive Publication Date: 2016-06-22
GUANGDONG DONGGUAN QUALITY SUPERVISION TESTING CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current national standard GB / T14833-2011 "Synthetic material runway surface" has made certain recommended limits on the limit of harmful substances, and the limit of harmful substances only includes the sum of benzene, toluene and xylene, free toluene diisocyanate and For heavy metals, the limits and detection methods of halogenated hydrocarbons are not involved

Method used

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  • A method for the determination of halogenated hydrocarbons in the surface layer of synthetic materials in artificial track and field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Release and collection of halogenated hydrocarbons in synthetic materials in artificial track and field

[0023] The size of the sample is 500mm×500mm, 1 piece, the thickness is not less than (13±2)mm, and the curing time exceeds 15 days. After equilibrating for 24 hours in an environmental chamber with a constant temperature of 50°C and a constant humidity of 75%, the samples were collected with a Tenax adsorption tube at a flow rate of 0.5 L / min for 20 minutes. After sampling, put plastic caps on both ends of the tube, and record the temperature and atmospheric pressure of the climate chamber at the time of sampling.

[0024] (2) Desorption and concentration of samples

[0025] Install the adsorption tube on the thermal desorption instrument and heat it so that the organic vapor is desorbed from the adsorbent and brought into the cold trap by the carrier gas flow for pre-concentration. The direction of the carrier gas flow is opposite to the direction of sampling...

Embodiment 2

[0047] (1) Release and concentration of halogenated hydrocarbons in synthetic materials of artificial track and field

[0048] The size of the sample is 1000mm×1000mm, 1 piece, the thickness is not less than (13±2) mm, and the curing time is 5 days. After equilibrating for 24 hours under the condition of constant temperature of 35°C and constant humidity of 60%, the sample was collected with a Tenax adsorption tube at a flow rate of 0.5 L / min for 20 minutes. After sampling, put plastic caps on both ends of the tube, and record the temperature and atmospheric pressure of the climate chamber at the time of sampling.

[0049] (2) Desorption and concentration of samples

[0050] Install the adsorption tube on the thermal desorption instrument and heat it so that the organic vapor is desorbed from the adsorbent and brought into the cold trap by the carrier gas flow for pre-concentration. The direction of the carrier gas flow is opposite to the direction of sampling. Then desorb q...

Embodiment 3

[0070] (1) Determination of halogenated hydrocarbons in synthetic materials of artificial track and field

[0071] Material is with embodiment 2. The size of the sample is 1000mm×1000mm, 1 piece, the thickness is not less than (13±2) mm, and the curing time is 20 days. After equilibrating for 24 hours under the condition of constant temperature of 60°C and constant humidity of 95%, the sample was collected with a Tenax adsorption tube at a flow rate of 0.5 L / min for 20 minutes. After sampling, put plastic caps on both ends of the tube, and record the temperature and atmospheric pressure of the climate chamber at the time of sampling.

[0072] (2) Desorption and concentration of samples

[0073] Install the adsorption tube on the thermal desorption instrument and heat it so that the organic vapor is desorbed from the adsorbent and brought into the cold trap by the carrier gas flow for pre-concentration. The direction of the carrier gas flow is opposite to the direction of sam...

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Abstract

The invention discloses a method for determining halohydrocarbon in a surface layer of a synthetic material for the artificial athletic field. The halohydrocarbon in the surface layer of the synthetic material for the artificial athletic field is subjected to environmental simulation volatilization in an environmental chamber, enriched by an adsorption tube and detected by a mass spectrometer after separated by a capillary chromatographic column, and then nature determination and quantification of the halohydrocarbon are realized, so that the respective content of the halohydrocarbon can be determined. The method is high in sensitivity, high in accuracy, high in specificity, simple to operate, high in universality, and applicable to conventional quality control on the halohydrocarbon in the surface layer of the synthetic material for the artificial athletic field and has wide application range and practical significance.

Description

technical field [0001] The invention relates to the technical field of harmful gas measurement, in particular to a method for measuring halogenated hydrocarbons in the surface layer of synthetic materials in artificial track and field, and more specifically to a method for measuring halogenated hydrocarbons in the surface layer of synthetic materials in artificial track and field by gas chromatography-mass spectrometry. hydrocarbon method. Background technique [0002] The current national standard GB / T14833-2011 "Synthetic material runway surface" has made certain recommended limits on the limit of harmful substances, and the limit of harmful substances only includes the sum of benzene, toluene and xylene, free toluene diisocyanate and For heavy metals, the limits and detection methods of halogenated hydrocarbons are not involved. [0003] my country is currently a big country in the production and use of synthetic material runways. The standard configuration of the ground...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
Inventor 赵历陈燕文覃毅磊冯伟科钟少枢
Owner GUANGDONG DONGGUAN QUALITY SUPERVISION TESTING CENT
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