Analysis of Fluorine by EDXRF: Simple Check for Use of PFAS for Textile and Kitchen Supplies

User Benefits

- EDXRF can detect the element fluorine (F) in fluorine resin coatings. - Measurement does not require complicated sample preparation, and can be started simply by placing the sample in the instrument. - Checking for the presence of fluorine in products by EDXRF is a simple technique for investigating the possibility that PFAS were used.

Introduction

The organofluorine compounds known collectively as PFAS (per- and polyfluoroalkyl substances) have been used widely as water repellents and surface treatment agents, taking advantage of their water repellency, stability, and other useful properties. However, since they are highly resistant to degradation and easily accumulate in the environment and living organisms, environmental persistence and bioaccumulation are concerns. Against this background, PFAS analysis is carried out using liquid chromatograph-mass spectrometer (LC-MS) or ion chromatograph, particularly in fields such as drinking water, foods, and soil. In response to limits on the use of PFAS, analysis of PFAS in products is also required. For example, perfluorohexanoic acid (PFHxA) and fluorotelomer alcohol (FTOH) are used respectively in various types of products as a water repellent and an oil repellent. Detection of the element fluorine (F) by EDXRF allows quick and simple investigation of the possibility that PFAS were used in products. This article introduces examples of analysis of water-repellent and oil-repellent cloth products and cooking products used in familiar products such as clothing, furniture, and kitchen products.

October 7, 2025 GMT