Seminar - Quantitative Microanalysis with EDS and WDS: Principles, Practice, and Pitfalls
July 16, 2025, 12:00 pm to 1:00 pm
Abstract:
Quantitative microanalysis using energy dispersive spectroscopy (EDS) and wavelength dispersive spectroscopy (WDS) is a widely used characterization method, capable of identifying and quantifying elements from B to U. This presentation will provide an overview of the fundamental principles behind both techniques, highlighting their respective strengths and limitations in terms of sensitivity, resolution, and quantification accuracy. I will discuss best practices for achieving reliable results, including considerations for analytical conditions and sample preparation that influence data quality. The talk is aimed at both new and experienced users, offering practical guidance for choosing between EDS and WDS depending on analytical goals and sample characteristics.
Speaker Bio:
Dr. Anette von der Handt is a research associate in the Department of Earth, Ocean and Atmospheric Sciences, where she oversees the electron microprobe (EPMA) and scanning electron microscope (SEM) facilities in the EMXDF lab. With over 15 years of experience in microanalysis and a background in geology, she develops and applies advanced EPMA techniques for scientific and industrial applications, including ultralight element analysis, analysis of beam-sensitive materials, and quantitative X-ray mapping. She has managed microbeam labs in both Canada and the U.S. and supports collaborative research and training across disciplines. She is an active council member of the Microanalysis Society and is part of the management team of the Characterization @ UBC GCRC cluster.