Quantitative Analysis of Fluorine by EDXRF: Powder and Fluorine-Containing Film

User Benefits

- Although complicated sample preparation such as dissolution or cutting is necessary when using ion chromatograph or SEM- EDS, EDX allows direct analysis. - Quantitative analysis of fluorine in samples containing less than 1 % is possible regardless of the sample form including solids, powders, and films. - Operation of the instrument is simple, and analyses can be carried out immediately, even by inexperienced personnel.

Introduction

Fluoride compounds have various properties such as a flame retardancy, water repellence, antifouling property, and heat resistance. They are used in a wide range of fields from daily necessities to semiconductors. The ion chromatograph and SEM-EDS are mainly used for the analyses of fluoride compounds, but complicated sample preparation is necessary for them. On the other hand, the feature of the energy dispersive X-ray fluorescence spectrometer (EDXRF) is that it can perform analysis without chemical pretreatment. Fluorine, which is generally difficult to analyze, can be quantified with EDX-8000/8100, which has high sensitivity for light elements. This article introduces the following two analysis examples. 1. Quantitative analysis of fluorine in powder samples (limit of detection, repeatability) 2. Analysisofthecoatingweightofafluororesincoatingagent (quantitation of coating weight by fundamental parameter (FP) method, limit of detection, repeatability)

November 2, 2021 GMT