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Forensic Soil Analysis Using the Electron Microprobe: The Markice-Bowling Case

Electron probe micro-analysis (EPMA) is a standard analytical tool for geologists, metallurgists and material scientists. EPMA can provide very high spatial resolution, quantitative chemical analyses of a wide variety of materials. Used predominantly for rock and mineral analyses by geologists, the electron probe is gaining traction as an invaluable tool to measure metal compositions, degradation of electrical components and in some special cases, biological samples. In this work, we present a case where EPMA analysis was used in the forensic analysis of soil.