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Soil Testing Using an XRF

Every now and then I get soil samples to test, as part of an XRF Testing outreach event — in which I rent a state-of-the art X-Ray Fluorescence Spectrometer (I am a trained, certified and experienced operator of these amazingly useful instruments), and folks wanting to test their stuff (vintage and modern dishes, kids toys, family heirlooms, etc.) chip in to […]

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