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Title: Determination of Halide Ions in Solution by Total Reflection X-ray Fluorescence (TXRF) Spectrometry
Authors: Vander Hoogerstraete, Tom
Jamar, Steven
Wellens, Sil
Binnemans, Koen # ×
Issue Date: 2014
Series Title: Analytical Chemistry vol:86 issue:3 pages:1391-1394
Abstract: An accurate quantitative determination of halide ions X (X =
Cl, Br, I) in aqueous solution by total reflection X-ray fluorescence (TXRF) is not possible using the traditional acidic internal standards. In general, the standard solutions are highly acidic (e.g., Ga(NO3)3 in HNO3) to avoid precipitation of hydroxides of the standard element and to obtain a stable and reliable standard. In acidic solutions, dissolved halide salts can exchange their cation for a proton. The resulting volatile HX compounds can vaporate during the drying procedure of the TXRF sample preparation. In this technical note, we show that an alkaline Cu(NH3)4(NO3)2 standard can be used for the determination of chlorine, bromine and iodine without facing
problems of HX evaporation.
ISSN: 0003-2700
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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