Spark source optical emission spectroscopy (Spark source OES or Spark source AES)
is a major technique for direct analysis of metals. All common commercial
metals and metal alloys, such as aluminium, steel, stainless steel, brass,
copper, etc.
The surface of the
sample is first ground flat and placed against the Spark stand where it is
flooded with argon and a rapid series of high current sparks produced. A
large quantity of the sample surface is evaporated and emits light
(photons). The signals are then recorded by an optical spectrometer. After
calibration, the technique provides a quantitative elemental analysis of
the metal sample.
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This Spark emission Laboratory of optical emission spectroscopy is part of The Spectroscopy
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First published on the web: 15 November 1999.
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