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Inductively Coupled Plasma Fuels Elemental Spectroscopy

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Coupled with a range of information-rich detectors, it provides the detection sensitivity required by diverse applications, from geochemical and environmental to agricultural, petrochemical, semiconductor and metallurgical analysis.

Michael Knowles, Varian Australia Pty. Ltd.

Over the past three decades, inductively coupled plasma, which forms during inductive heating of ionized gas, has become a valuable source for elemental spectroscopy. In induction-coupled plasma spectroscopy, plasma formation involves passing an inert gas, most often argon, through a quartz torch and imposing an electromagnetic field oscillating at high frequency on the gas flow at the end of the torch. Introduce a spark, and some of the inert gas will ionize. The resulting electrons oscillate under the influence of the radio-frequency field, creating more ions and electrons until a plasma...Read full article

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    Published: March 2004
    Glossary
    plasma
    A gas made up of electrons and ions.
    Basic Sciencecoupled plasmaFeaturesinduction-coupled plasma spectroscopyinert gasionized gasplasmaSensors & Detectorsspectroscopy

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