Further Analytics

Energy Dispersive X-ray Spectroscopy (EDX or EDS, in SEM and TEM) and Wavelength Dispersive X-ray Spectroscopy (WDX or WDS, only in SEM):

Through interaction with high-energy electrons, atoms in the sample can be excited to emit element-specific X-ray quanta. This characteristic X-ray radiation is detected and can be qualitatively and quantitatively analyzed. The choice of method (whether EDX or WDX) depends on the sample and research question since both methods have their respective advantages and disadvantages when compared to each other.

Electron Energy Loss Spectroscopy (EELS) and Energy-filtered Transmission Electron Microscopy (EFTEM), both only in TEM:

Through interaction with the atoms in the sample, primary electrons can experience a characteristic energy loss. By recording the energy loss spectrum (EELS), one can obtain information about the elements involved and their bonding states in suitable samples. By selectively imaging electrons with a characteristic energy loss in the image plane, the distribution of the relevant elements in the sample is visualized (EFTEM).