Definition of "microprobe" []

• An instrument used to determine the chemical composition at a point on a solid surface, such as that of a mineral; analyzes the X-rays emitted when a beam of electrons are focused on the sample (noun)

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• "Zare and his Stanford co-workers discovered small amounts of PAHs associated with the carbonate globules within ALH84001 via a method termed microprobe two-step laser microscopy."
• "JEOL completed the installation of its new generation of EPMA, also known as a microprobe, at the Southeastern North Carolina Regional Microanalytical and Imaging Center (SENCR-MIC), a state-of-the-art facility opened in 2009 as a joint collaboration between Fayetteville State University and the University of North Carolina at Pembroke."
• "In January, JEOL completed the installation of its new generation of EPMA, also known as a microprobe, at the Southeastern North Carolina Regional Microanalytical and Imaging Center (SENCR-MIC), a state-of-the-art facility opened in 2009 as a joint collaboration between Fayetteville State University and the University of North Carolina at Pembroke."