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TN45: Determination of Trace Anions in Hydrofluoric Acid, Ammonium Fluoride, and a Buffered Oxide Etchant Be the first to rate this application

tn45 determination trace anions hydrofluoric acid ammonium fluoride a buffered oxide etchant


This work, an update to the original TN 45, reports an improved method for determining low concentrations of strong acid anions in HF. The method design also allows determination of low concentrations of strong acid anions in an HF/ammonium fluoride mixture (BOE), and ammonium fluoride. The ICE-AS6 column was replaced by the ICE-AS1 column because internal analysis showed that ICE-AS1 column had consistently low levels of sulfate, whereas there was a wide variation in sulfate concentrations from the ICE-AS6 column.
Market: Material Science
Keywords: ICE, IonPac AS11, IonPac ICE-AS1, RFIC, SIMI, TN 45, ATC-HC
Matrix: HF
Author: Thunyarat Phesatcha, S. Tukkeeree & J. Rohrer
Affiliation: Thermo Fisher Scientific
Uploaded on 10/8/2015.

For Research Use Only. Not for use in diagnostic procedures.