Device and method for positioning a sample mounted on a glow discharge spectrometer
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United States of America Patent
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Jun 5, 2007
Grant Date -
Nov 25, 2004
app pub date -
Jun 17, 2002
filing date -
Jun 18, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a device and a method for positioning a sample (8) mounted on a glow discharge spectrometer (6). A sample (8) to be analyzed is mounted on the first electrode means (5) of a glow discharge spectrometer (6) then a detachable arm (11) is mounted on a mechanic assembly comprising a cutting tool (2). This detachable arm (11) comprises a light source (14) used for illuminating said sample (8) with a light beam having a diameter equal to the inner diameter of the first electrode means (5) and then the position of the light beam is located on the sample (8). The portion of the sample (8) which will be exposed effectively to the glow discharge may thus be located with accuracy.
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