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Lanthanoides in glass and glass ceramics

: Meinhardt, Jürgen; Kilo, Martin; Somorowsky, Ferdinand; Hopp, Werner


Golloch, A.:
Handbook of Rare Earth Elements. Analytics
Berlin: De Gruyter, 2017
ISBN: 978-3-11-036523-8
ISBN: 978-3-11-036509-2
ISBN: 978-3-11-036508-5
ISBN: 3-11-036509-X
ISBN: 978-3-11-039125-1
Book Article
Fraunhofer ISC ()
Seltene Erden; Glas; Analytik; ICP-OES; Röntgenfluoreszenzanalyse (RFA); Aufschlussverfahren; Rasterelektronenmikroskopie (REM); Transmissionselektronenmikroskopie (TEM); EDX; WDX

Many types of glass contain lanthanoides; among them, special glass for optical applications is the one with the highest content of lanthanoides. The precise determination of the lanthanoides′ concentration is performed by inductively coupled plasma-optical emission spectrometry (ICP-OES). However, up to now, there are no established standard processes guaranteeing a uniform approach to the lanthanoide analysis. The knowledge of the lanthanoides′ concentrations is necessary on the microscale in some cases, especially if a suitable separation and recycling procedure is to be applied. Here, the analysis is performed by energy-dispersive X-ray (EDX) or wavelength-dispersive X-ray (WDX) analytics in the scanning electron microscope.