Method for analyzing perfluoroalkyl acid pollutants in environmental water sample and application
A technology for perfluoroalkyl acids and pollutants, which is applied in the field of analyzing perfluoroalkyl acid pollutants in environmental water samples, can solve the problems of poor detection effect, low detection sensitivity and low recovery rate, and reaches the detection limit Low, less material consumption, high recovery rate
Active Publication Date: 2021-09-21
SHANDONG ANALYSIS & TEST CENT
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Problems solved by technology
The current solid-phase adsorption materials cannot meet the requirements of detecting perfluoroalkyl acid pollutants (PFAAs) in environmental water samples, the detection sensitivity is low, the recovery rate is low, and the detection effect is poor. In order to solve the deficiencies in the prior art, the present invention provides A method and application for the analysis of perfluoroalkanoic acid pollutants in environmental water samples has been developed, which has better advantages than other existing detection methods
Method used
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Embodiment 1
[0039] Based on F-CNTs (fluorinated carbon nanotubes) and MWCNTs (multi-walled carbon nanotubes) as solid-phase extraction adsorbents, liquid chromatography-tandem mass spectrometry was used to determine seven PFAAs in environmental water samples. F-CNTs (fluorinated carbon nanotubes) and MWCNTs (multi-walled carbon nanotubes) are commercially available.
[0040] Wherein, the tube diameter of the fluorinated carbon nanotube is 20-30nm, and the tube length is: 2-10 μm; or, the fluorine content of the fluorinated carbon nanotube is: 48-58wt%; or, the specific surface area of the fluorinated carbon nanotube is: 100-130m 2 g -1 .
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Abstract
The invention belongs to the technical field of environmental water sample detection, and relates to a method for analyzing perfluoroalkyl acid pollutants in an environmental water sample and application. According to the method, a fluorinated carbon nanotube is used as a solid phase extraction adsorbent, and liquid chromatography-tandem mass spectrometry is used for determining and analyzing the perfluoroalkyl acid pollutants in the environmental water sample. The method has the advantages of low material consumption, wide linear range, high recovery rate, low detection limit and the like, and can realize rapid analysis and determination of trace perfluoroalkyl acid pollutants in an environmental water sample.
Description
technical field [0001] The invention belongs to the technical field of environmental water sample detection, and relates to a method and application for analyzing perfluoroalkyl acid pollutants in environmental water samples. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Perfluoroalkanoic acid pollutants (PFAAs) are one of the most concerned organic pollutants in the environment, which have toxic characteristics such as high toxicity, teratogenicity, carcinogenicity, and mutagenicity. Perfluoroalkanoic acid pollutants are toxic to various organs of the human body, causing damage to the immune system and imbalance of endocrine function. Due to their thermal and chemical...
Claims
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IPC IPC(8): G01N30/02G01N30/06G01N30/72
CPCG01N30/02G01N30/06G01N30/72Y02A20/20
Inventor 赵汝松卢元月王磊磊王晓利赵学伟
Owner SHANDONG ANALYSIS & TEST CENT