Gas chromatography for detection of phosphate fire-retardant plasticizer in textile

A flame-retardant plasticizer and gas chromatography technology, applied in the field of gas chromatography, to achieve the effects of high sensitivity, easy operation, and simple extraction method

Inactive Publication Date: 2012-08-08
THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, the European Union has issued the relevant decree EN71-9:2005, requiring the detection of phosphate compounds such as tributyl phosphate, triphenyl phosphate, and tricresyl phosphate in toys, but there is no related phosphate plasticizer in China. Research Report on Detection Methods in Textiles

Method used

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  • Gas chromatography for detection of phosphate fire-retardant plasticizer in textile
  • Gas chromatography for detection of phosphate fire-retardant plasticizer in textile
  • Gas chromatography for detection of phosphate fire-retardant plasticizer in textile

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Embodiment 1

[0081] Embodiment 1, a kind of gas chromatography that is applicable to the detection of 8 types of phosphate ester flame retardant plasticizers in textiles, comprises the following steps:

[0082] 1), prepare the sample solution to be tested:

[0083] ①Take 5.0g of the sample to be tested, cut it to 0.5cm×0.5cm, and mix well.

[0084] ②Take 1.0 g (accurate to 0.01 g) of the above-mentioned chopped sample to be tested and place it in a conical flask, add 20 mL of extraction solvent (extractant)-ethyl acetate, fully immerse the sample, and set the working frequency at 40 kHz in a water bath Extract in an ultrasonic generator at a temperature of 30°C for 30 minutes to obtain the extract and sample residue after extraction; transfer the extract into a flat-bottomed flask.

[0085] ③ Add 10 mL of extraction solvent-ethyl acetate to wash the sample residue after extraction to obtain a washing solution;

[0086] ④. Combine the extract solution obtained in step ② and the washing so...

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Abstract

The invention discloses a gas chromatography for detection of a phosphate fire-retardant plasticizer in a textile. The gas chromatography comprises the following steps of 1, preparing a test sample solution which is supernatant, 2, preparing a gradient standard solution having the concentration of 1 to 10 micrograms per milliliter by dissolving at least one phosphate fire-retardant plasticizer in a solvent, 3, injecting the gradient standard solution into a gas chromatograph, carrying out detection by a flame photometric detector to determinate peak positions of the at least one phosphate fire-retardant plasticizer, recording corresponding peak areas, and making a standard curvilinear equation by concentrations as horizontal coordinates and the peak areas as vertical coordinates, and 4, replacing the gradient standard solution used in the step 3 with the supernatant obtained by the step 1, detecting the at least one phosphate fire-retardant plasticizer in the test sample solution and the peak areas of the at least one phosphate fire-retardant plasticizer according to the step 3, and carrying out calculation by the standard curvilinear equation obtained by the step 3 to obtain the content of the at least one phosphate fire-retardant plasticizer in the test sample solution.

Description

technical field [0001] The invention relates to a gas chromatography method suitable for detecting eight types of phosphate ester flame-retardant plasticizers in textiles. Background technique [0002] Phosphate plasticizers are one of the main types of plasticizers. Phosphate plasticizers have dual functions of flame retardancy and plasticization. They can be used as flame retardants and plasticizers. They can be used in polyvinyl chloride , rubber, polyurethane and other synthetic materials are used in PVC products to make the products have excellent resistance to brittleness and discoloration under sunlight exposure, good flame retardancy, and good low-temperature performance. Products using it as a plasticizer can be improved in wear resistance, water resistance and electrical properties. It also has excellent wear-resistant and antibacterial functions, and has good compatibility with polyvinyl chloride, acetic acid, nitrocellulose, polystyrene, polyethylene and other p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
Inventor 吴刚赵珊红吴俭俭郭方龙王力君刘婷张明誉
Owner THE INSPECTION & QUARANTINE TECH CENT ZHEJIANG ENTRY EXIT INSPECTION & QUARANTINE BUREAU
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