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Detecting method for PBDEs (polybrominated diphenyl ethers) in plastic component of electronic element

A technology of electronic components and detection methods, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of complex sample pretreatment, etc., and achieve the effects of simple detection methods, good separation, and accurate quantitative results

Inactive Publication Date: 2014-06-11
昆山洛丹伦生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the pretreatment of samples in these current detection methods is relatively complicated.

Method used

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  • Detecting method for PBDEs (polybrominated diphenyl ethers) in plastic component of electronic element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (a) Weigh 2.0023g of the sample linear diode plastic part with an electronic balance and cut it into particles with a mass of ≤0.2g per piece, and pour the sample particles into the Teflon microwave tube;

[0048] (b) Use a graduated cylinder to measure 30ml of solvent (hexane: acetone) = 1:1 (v / v) and pour it into a Teflon microwave tube for microwave extraction; after the microwave device is installed, turn on the power and press F1-Library to start To set parameters, use the up, down, left, and right keys to select a custom method for setting. The microwave extraction parameters are set to:

[0049] (1) Reagent-25, 25, 25, 25;

[0050] (2) Power-800, Ramp---5, Hold---10, Fan---1;

[0051] (3) Power-0, Ramp---0, Hold---15, Fan---3;

[0052] (4) IR: 115°C

[0053] Under the above setting conditions, extract; after the solution extraction is completed, turn off the power after natural cooling, and release the pressure.

[0054] (c) Filter the liquid in the Teflon tu...

Embodiment 2

[0061] (a) Use an electronic balance to weigh 2.0102g of the fast-shaped resistance plastic part of the sample line and cut it into particles with a mass of ≤0.1g per piece, and pour the sample particles into the Teflon microwave tube;

[0062] (b) Use a graduated cylinder to measure 15ml of solvent (hexane: acetone) = 1:3 (v / v) and pour it into a Teflon microwave tube for microwave extraction; after the microwave device is installed, turn on the power and press F1-Library to start To set parameters, use the up, down, left, and right keys to select a custom method for setting. The microwave extraction parameters are set to:

[0063] (1) Reagent-25, 25, 25, 25;

[0064] (2) Power-800, Ramp---5, Hold---10, Fan---1;

[0065] (3) Power-0, Ramp---0, Hold---15, Fan---3;

[0066] (4) IR: 115°C

[0067] Under the above setting conditions, extract; after the solution extraction is completed, turn off the power after natural cooling, and release the pressure.

[0068] (c) Filter the...

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Abstract

The invention discloses a detecting method for PBDEs (polybrominated diphenyl ethers) in a plastic component of an electronic element. The detecting method comprises the following steps of (a) treating a sample to form particles, wherein the mass of each particle is less than or equal to 0.2g; (b) placing the sample treated in the step (a) into a hexane and acetone mixed solution to carry out microwave extraction, wherein the ratio of the sample to a solvent for extraction is 1: (5-20)g / mL; (c) analyzing the solution extracted in the step (b) by using a GC-MS (Gas Chromatography-Mass Spectrometer), and setting a special chromatographic condition. The analysis method provided by the invention is rapid, high in accuracy and good in repeatability and reproducibility.

Description

technical field [0001] The invention relates to a method for detecting PBDEs, in particular to a method for detecting PBDEs in plastic parts of electronic components. Background technique [0002] Polybrominated Diphenyl Ethers (Poly Brominated Diphenyl Ethers, referred to as PBDEs), there are 209 kinds of homologues such as tetrabromodiphenyl ether, pentabromine, hexabromine, octabromine and decabromine. Its commercial polybrominated diphenyl ethers are a group of diphenyl ether mixtures with different numbers of bromine atoms, so they are collectively called polybrominated diphenyl ethers. Due to its excellent flame retardant properties, the largest use of PBDEs is as a flame retardant, which is added to composite materials during the product manufacturing process to improve the fire resistance of the product. Because polybrominated diphenyl ethers can release free radicals at high temperatures and block combustion reactions, they are used in a wide range of applications,...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 王生兵
Owner 昆山洛丹伦生物科技有限公司
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