Energy Dispersive X-ray Spectroscopy (EDS) 

EDS is an elemental chemical microanalysis technique performed in conjunction with each of the SEMs at MEE. Features or phases as small as about 1 micron can be analyzed.

EDS Elemental Map - Graphite in SteelEDS analysis detects x-rays emitted from the sample during bombardment by the SEM electron beam and characterizes the elemental chemical composition of the analyzed volume. EDS is capable of obtaining rapid qualitative chemical information, semi-quantitative composition determinations, maps showing lateral distribution of chemical elements, and compositional profiles across a surface. All stable elements can be detected with the exception of hydrogen, helium, and lithium. Our JEOL 6610LV is equipped with the latest silicon drift detector (SDD), which provides a very high x-ray throughput. This results in fast x-ray data acquisition, increased sensitivity to elements in small concentrations, and advanced spectral imaging. Together, SEM and EDS provide an excellent combination for efficient characterization of sample surfaces and the elements comprising specific near-surface features.

Typical Applications

  • Foreign material analysis
  • Corrosion evaluation
  • Coating composition analysis
  • Rapid material alloy identification
  • Small component material analysis
  • Phase identification and distribution

Contact us to discuss which evaluation method is best suited to solve your materials-related problems. Or visit our Handbook of Analytical Methods for Materials (HAMM) for more in-depth explanations and typical applications of the analytical methods used for the characterization and evaluation of materials and products.