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Determination of germanium by AAS in chloride-containing matrices
Date
1996-06-01
Author
Anwari, MA
Abbasi, HU
Volkan, Mürvet
Ataman, Osman Yavuz
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Interference effects of NaCl on the ET-AAS determination of Ge have been studied. The use of several matrix modifiers to alleviate this problem such as Ni and Zn perchlorates and nitrates, nitric acid, ammonium nitrate are reported. The stabilizing effect of Zn and Ni perchlorates allows the use of high pretreatment temperatures. NaCl is thus thermally volatilized from the atomizer by employing pretreatment temperatures higher than 1500 degrees C resulting in an improved sensitivity. Germanium levels in zinc plant slag samples, have been determined and compared to those obtained for the same samples spiked with NaCl with platform and wall atomization using nickel perchlorate as a matrix modifier. The results were compared with those from a hydride generation system equipped with a liquid nitrogen trap. The recoveries for germanium have been almost complete and amount to 99% for the original slag samples and 80% for 15% (w/w) NaCl containing spiked samples.
Subject Keywords
Atomic-absorption spectrometry
,
Atomization
URI
https://hdl.handle.net/11511/53801
Journal
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
Collections
Department of Chemistry, Article