Glow discharge optical emission spectroscopy gdoes is a spectroscopic method for the quantitative analysis of metals and other non metallic solids the idea was published and patented in 1968 by werner grimm from hanau germany ordinary atomic spectroscopy can be used to determine the surface of a material but not its layered structure in contrast gdoes gradually ablates the layers of . Glow discharge optical emission spectrometry pulsed rf gdoes instrumentation horiba scientific pulsed rf gdoes instruments have unique features supported by multiple patents that make them the ideal companion characterization tools to material research and elaboration. Gds850 glow discharge atomic emission spectrometer glow discharge spectrometry utilizes a low pressure non thermal process in which material is uniformly sputtered from the sample surface by a stream of argon ions the sputtered material is then atomized and excited in a low pressure plasma discharge away from the sample surface. The terms optical emission spectrometry and photoelectric optical emission spectrometry however generally refer to optical emission spectrometry using spark discharge direct current arc discharge or glow discharge for generating the excitation discharge shimadzu optical emission spectrometers feature pulse distribution analysis pda
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