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A Method for Analyzing Trace Perfluorinated Compounds Using Magnetic Organic Framework Materials

A technology of organic frameworks and compounds, applied in the field of detection of perfluorinated compounds, can solve the problem of high detection limit

Active Publication Date: 2020-07-07
SHANDONG ANALYSIS & TEST CENT
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  • Application Information

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Problems solved by technology

[0004] Master thesis "Preparation of Covalent Triazine Framework Materials and Its Application in High Performance Liquid Chromatography" (Hu Chenchen, Zhengzhou University, 2015) discloses the application of covalent triazine framework materials to five polycyclic aromatic hydrocarbons in environmental water samples However, the detection limit of this separation and detection method using a covalent triazine framework material is 0.5-1.0 ng / mL
, the detection limit is high, and it is difficult to effectively, quickly and sensitively detect the lower levels of perfluorinated compounds in surface water, groundwater and seawater

Method used

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  • A Method for Analyzing Trace Perfluorinated Compounds Using Magnetic Organic Framework Materials

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[0017] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0018] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0019] As introduced in the background technology, the existing technology is difficult to effectively, quick...

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Abstract

The invention discloses a method for analyzing a trace-amount perfluoronic compound by using a magnetic organic framework material. The method comprises the following steps: by taking the magnetic organic framework material as an adsorbent, extracting and enriching a perfluoronic compound in a testing water sample through magnetic phase solidification extraction, desorbing the perfluoronic compound which is extracted and enriched in the magnetic organic framework material, and performing detection analysis of liquid chromatogram-tandem mass spectrum, wherein the magnetic organic framework material is a material prepared from ferric oxide and a covalent triazine framework material through compounding. By adopting the method, perfluoronic compounds of relatively low contents in surface water, underground water and seawater are effectively, rapidly and sensitively detected.

Description

technical field [0001] The invention relates to a detection method for perfluorinated compounds, in particular to a method for analyzing trace perfluorinated compounds by using a magnetic organic framework material. Background technique [0002] Perfluorinated compounds are a group of synthetic compounds whose carbon skeleton is completely surrounded by fluorine atoms, and are widely used in textiles, lubricants, surfactants, food packaging, metal plating, fuels and other fields. The widespread use of perfluorinated compounds has caused a series of problems such as environmental pollution, biological hazards and human health. The presence of perfluorinated compounds has been detected in surface water, groundwater and seawater, and there is an urgent need to establish a simple, rapid and sensitive analytical method to detect perfluorinated compounds in environmental water samples. [0003] Covalent organic framework materials are a new type of multifunctional porous material...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/08
CPCG01N30/02G01N30/08G01N2030/062
Inventor 赵汝松任继云王晓利王霞徐桂菊张贝贝李娜
Owner SHANDONG ANALYSIS & TEST CENT
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