FIGURE 5
From: Beryllium Detection in Human Lung Tissue using Electron Probe X-Ray Microanalysis
A, energy dispersive X-ray analysis spectrum of an intracytoplasmic backscatter-positive particle shows discrete peaks for beryllium (Be). B, spectrum from area away from particles with a prominent peak for oxygen (O). Only background signal is seen in the Be region (∼0.1 keV).
