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投影片 - 中正大學化生系
投影片 - 中正大學化生系

... first modern chemist, and therefore one of the founders of modern chemistry, and one of the pioneers of modern experimental scientific method. 2. He endorsed the view of elements as the undecomposable constituents of material bodies; and made the distinction between mixtures and compounds. ...
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X-ray fluorescence



X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.
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