Abstract:

Per-and polyfluoroalkyl substances （PFAS） are a class of persistent, highly stable and bioaccumulative compounds, which are widely concerned because of their environmental and human health hazards. Many of the compounds in PFAS are classed as Persistent Organic Pollutant at home and abroad, which are on the list of banned or restricted substances. In this paper, the standard methods for determination of PFAS at home and abroad are reviewed. The detection objects, quantitative methods, detection limits or quantitative limits of these standard methods are summarized. The advantages and disadvantages of these standard methods are also pointed out. And then, the methods of semi-quantitative analysis and rapid determination of PFAS are introduced. Since PFAS are not optically or electro chemically active, they cannot be directly measured by conventional spectroscopic or electrochemical methods. So the techniques of organic dyes, nano-materials, molecularly imprinted polymers and biology, which are used to improve the optical or electro chemical activity of the PFAS are also described. At last, it is suggested that according to the actual situation and test objects, the semi-quantitative or rapid determination method can be chosen as the primary screening method, and the standard determination method can be used as the confirmation. The purpose of this study is to provide a reference for the establishment of a more perfect monitoring and determination system for PFAS.

Key words: persistent organic pollutants, per-and polyfluoroalkyl compounds （PFAS）, determination methods