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Detecting method for PBBs (polybrominated biphenyls) in plastic component of electronic element

A technology for electronic components and detection methods, applied in instruments, measuring devices, scientific instruments, etc., to achieve the effects of good separation, good repeatability and reproducibility, and simple detection methods

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

Although many detection methods have been studied, the detection methods that are easy to pre-treat in plastics still need to be further developed.

Method used

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  • Detecting method for PBBs (polybrominated biphenyls) in plastic component of electronic element
  • Detecting method for PBBs (polybrominated biphenyls) in plastic component of electronic element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (a) Use an electronic balance to weigh 2.0173g of the sample linear diode plastic part and cut it into particles with a mass of ≤0.2g per piece, and pour the sample particles into the Teflon microwave tube;

[0052] (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:

[0053] (1) Reagent-25, 25, 25, 25;

[0054] (2) Power-800, Ramp---5, Hold---10, Fan---1;

[0055] (3) Power-0, Ramp---0, Hold---15, Fan---3;

[0056] (4) IR: 115°C

[0057] Under the above setting conditions, extract; after the solution extraction is completed, turn off the power after natural cooling, and release the pressure.

[0058] (c) Filter the liquid in the Teflon ...

Embodiment 2

[0065] (a) Use an electronic balance to weigh 2.0114g 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;

[0066] (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:

[0067] (1) Reagent-25, 25, 25, 25;

[0068] (2) Power-800, Ramp---5, Hold---10, Fan---1;

[0069] (3) Power-0, Ramp---0, Hold---15, Fan---3;

[0070] (4) IR: 115°C

[0071] Under the above setting conditions, extract; after the solution extraction is completed, turn off the power after natural cooling, and release the pressure.

[0072] (c) Filter the...

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Abstract

The invention discloses a detecting method for PBBs (polybrominated biphenyls) 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 detection method of PBBs, in particular to a detection method of PBBs in plastic parts of electronic components. Background technique [0002] Polybrominated biphenyls (PBBs for short), including 209 congeners such as tetrabromo, pentabromo, hexabromo, octabromo, decabromo, etc., are generally used in the market as a group of biphenyl mixtures with different bromine atoms Sold as a commodity, collectively referred to as polybrominated biphenyls. Brominated flame retardants (BFRs) are commonly used industrial chemical preparations. Due to their excellent flame retardant properties, they are widely used in printed circuit boards, plastics, coatings, wires and cables, and resin electronic components. PBBs mainly come from brominated flame retardants. [0003] Due to the continuous improvement of the global economy and the continuous improvement of people's living standards, the production and use of electronic and electrical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 王生兵
Owner 昆山洛丹伦生物科技有限公司
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