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Method for simultaneously detecting multiple phosphorus-based flame retardants in plastics

A phosphorus-based flame retardant and plastic technology, applied in the field of detection and analysis, can solve the problems of increased cost, waste of manpower and material resources, etc., and achieve the effects of good precision, high recovery rate and good reproducibility

Active Publication Date: 2015-03-04
广电计量检测(成都)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing detection technologies for phosphorus-based flame retardants are for the detection of a single species. When there are many kinds of phosphorus-based flame retardants in the product, multiple detections are required, which wastes manpower and material resources and increases costs.

Method used

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  • Method for simultaneously detecting multiple phosphorus-based flame retardants in plastics
  • Method for simultaneously detecting multiple phosphorus-based flame retardants in plastics
  • Method for simultaneously detecting multiple phosphorus-based flame retardants in plastics

Examples

Experimental program
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Effect test

Embodiment 1

[0043] A method for simultaneously detecting multiple phosphorus-based flame retardants in plastics, comprising the steps of:

[0044] a. Establish a standard curve: Accurately weigh the standard substances of the following phosphorus-based flame retardants: TDCPP, TCPP, TCEP, TBP, TBEP, TEPA, Triphenyl phosphate, Tri-o-cresylphosphate, Tri-m-cresylphosphate and Tri-p -cresylphosphate, and then dissolve the above-mentioned phosphorus-based flame retardants in tetrahydrofuran, prepare a 1000mg / L standard stock solution, and dilute them to 5mg / L, 2.5mg / L, 2mg / L, 1mg / L and 0.5mg / L respectively , then use gas chromatography-mass spectrometer to measure the standard working liquids at all levels, and draw a standard curve with the concentration of the standard working liquids at all levels as the abscissa and the instrument response value as the ordinate;

[0045] b. Sample pretreatment: Accurately weigh 0.5g of the sample to be tested, place it in a 50mL stoppered test tube, add 1...

Embodiment 2

[0060] A method for simultaneously detecting multiple phosphorus-based flame retardants in plastics, comprising the steps of:

[0061] a. Establish a standard curve: the standard substances of the following phosphorus-based flame retardants are accurate: TDCPP, TCPP, TCEP, TBP, TBEP, TEPA, Triphenyl phosphate, Tri-o-cresylphosphate, Tri-m-cresylphosphate and Tri-p-cresylphosphate , and then the above-mentioned phosphorus-based flame retardants were dissolved in tetrahydrofuran, prepared into a standard stock solution of 1000mg / L, diluted to 5mg / L, 2.5mg / L, 2mg / L, 1mg / L and 0.5mg / L respectively, and then Use gas chromatography-mass spectrometer to measure the standard working solutions at all levels, draw the standard curve with the concentrations of the standard working solutions at all levels as the abscissa and the instrument response value as the ordinate;

[0062] b. Sample pretreatment: Accurately weigh 0.5g of the sample to be tested, place it in a 50mL stoppered test tu...

Embodiment 3

[0077] A method for simultaneously detecting multiple phosphorus-based flame retardants in plastics, comprising the steps of:

[0078] a. Establish a standard curve: Accurately weigh the standard substances of the following phosphorus-based flame retardants: TDCPP, TCPP, TCEP, TBP, TBEP, TEPA, Triphenyl phosphate, Tri-o-cresylphosphate, Tri-m-cresylphosphate and Tri-p -cresylphosphate, and then dissolve the above-mentioned phosphorus-based flame retardants in tetrahydrofuran, prepare a 1000mg / L standard stock solution, and dilute them to 5mg / L, 2.5mg / L, 2mg / L, 1mg / L and 0.5mg / L respectively , then use gas chromatography-mass spectrometer to measure the standard working liquids at all levels, and draw a standard curve with the concentration of the standard working liquids at all levels as the abscissa and the instrument response value as the ordinate;

[0079] b. Sample pretreatment: Accurately weigh 0.5g of the sample to be tested, place it in a 50mL stoppered test tube, add 1...

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Abstract

The invention relates to a method for simultaneously detecting multiple phosphorus-based flame retardants in plastics. The method comprises the following steps: (a) establishing a standard curve; (b) pretreating a sample; and (c) detecting the sample. The detection method has the beneficial effects that a selected chromatographic column can realize a good separating effect on the multiple phosphorus-based flame retardants; in addition, fast determination can be carried out on the multiple phosphorus-based flame retardants, and accurate qualitative and quantitative analysis are realized by the method; and the method is good in reproducibility, high in recovery rate, good in precision and simple in operation.

Description

technical field [0001] The invention relates to the field of detection and analysis, in particular to a method for simultaneously detecting multiple phosphorus-based flame retardants in plastics. Background technique [0002] TDCPP, TCPP, TCEP, TBP, TBEP, TEPA, Triphenyl phosphate, Tri-o-cresylphosphate, Tri-m-cresylphosphate and Tri-p-cresylphosphate can be used as flame retardants or as plasticizer. They are widely used as flame retardants and plasticizers in polyurethane, polyester resin, polyacrylate and other polymers, and are widely used in chemical, construction, furniture and other industries. [0003] Among them, TCEP is a plasticizer and a viscosity regulator with flame-retardant properties. It is a moderately toxic substance, but it is not easy to be biodegraded, and its accumulation in the body will cause damage to the liver and kidneys. TDCPP is a flame retardant and can also be used as a plasticizer. It is widely used in a variety of household products. Due t...

Claims

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Application Information

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IPC IPC(8): G01N30/88
Inventor 冯桂冰李支薇王华王海鸣任祥祥
Owner 广电计量检测(成都)有限公司
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