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Method for rapidly detecting content of perfluor octyl sulfonic acid (PFOS) and perfluor octylic acid (PFOA)

A technology of perfluorooctane sulfonic acid and fluorooctane sulfonic acid, which is applied in the field of rapid determination of perfluorooctane sulfonic acid and perfluorooctane acid content, can solve problems such as being in the research stage, and achieves simple and easy operation and improved performance. Inspection speed, inspection time and cost savings

Inactive Publication Date: 2010-03-31
江苏省优联检测技术服务有限公司
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Problems solved by technology

[0003] Check the existing literature, most of which describe the detection methods of PFOS and PFOA in leather and textiles; for the rapid screening and determination of perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in plastic products, electronic and electrical products, and paper The method is still in the research stage

Method used

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  • Method for rapidly detecting content of perfluor octyl sulfonic acid (PFOS) and perfluor octylic acid (PFOA)
  • Method for rapidly detecting content of perfluor octyl sulfonic acid (PFOS) and perfluor octylic acid (PFOA)
  • Method for rapidly detecting content of perfluor octyl sulfonic acid (PFOS) and perfluor octylic acid (PFOA)

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Embodiment

[0046] Sample pretreatment first: select paper sample (SAMPLE1) and plastic sample (SAMPLE2), accurately weigh 1.0g of each of SAMPLE1 and SAMPLE2, put them into 50ml glass bottles, add 10ml of methanol accurately, and ultrasonically extract at room temperature 1 hour, and filter with a 0.45 μm organic phase filter to make a sample solution.

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Abstract

The invention provides a method for rapidly detecting the content of perfluor octyl sulfonic acid (PFOS) and perfluor octylic acid (PFOA), which comprises the following steps: firstly, weighing a sample in a glass bottle, adding extract liquor, extracting and then filtering; then detecting the approximate content of PFOS and PFOA in the sample extract liquor by an HPLC-MS (directly carrying out mass spectrum (MS) detection without the process of a chromatographic column); if the content of the PFOS and the PFOA in the sample extract liquor is smaller than 50ppb, judging that a sample is feminine; and if the content of the PFOS and the PFOA in the sample extract liquor is larger than 50ppb, detecting the precise content of the PFOS and the PFOA in the sample by the HPLC-MS. The invention can rapidly detect the content of the PFOS and the PFOA in a plastic product, an electronic and electric product part and paper by a direct MS detection method, greatly improve the detecting speed and save the detecting time and cost and is worthy of popularizing.

Description

technical field [0001] The invention relates to a method for quickly measuring the content of perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in plastic products, electronic and electrical product parts and paper. Background technique [0002] Perfluorooctanesulfonyl compounds (PFOS) are an important class of perfluorosurfactants and important precursors of many other perfluorinated compounds. At the same time, it has the characteristics of oleophobic and hydrophobic, and is widely used in the production of surface antifouling treatment agents such as textiles, leather products, furniture and carpets, but it is also one of the most difficult to degrade organic pollutants and can accumulate in organic organisms. It is a class of environmental pollutants with systemic multi-organ toxicity. The European Union also strictly restricts the use of perfluorooctane sulfonic acid (PFOS). On December 27, 2006, the European Parliament and the Council of Ministers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 周剑峰张新春秦协
Owner 江苏省优联检测技术服务有限公司
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