Determination of trace anions in concentrated glycolic acid

Technical Note 44 The Determination of Trace Anions in Concentrated Phosphoric Acid INTRODUCTION EQUIPMENT The determination of trace anions in phosphoric acid is hampered by a large excess of phosphate ion. Chloride determination at 0.1 mg/L (ppm) in 85% (w/w)…

Appli cat i on N ote 1 0 1 Trace Level Determination of Bromate in Ozonated Drinking Water Using Ion Chromatography Harpreet Dhillon and John Statler Thermo Fisher Scientific, Sunnyvale, CA, USA Introduction The following equations show the pathway by…

TECHNICAL NOTE 45 Determination of trace anions in hydrofluoric acid, ammonium fluoride, and a buffered oxide etchant Authors T. Phesatcha, S. Tukkeeree, and J. Rohrer Thermo Fisher Scientific, Sunnyvale, CA Keywords Ion chromatography, IC, ionexclusion pre-separation, ICE, ICE-AS1, chloride, nitrate,…

Application Note 85 Determination of Trace Anions in Organic Solvents INTRODUCTION EQUIPMENT In the manufacture of semiconductor materials, a great deal of attention is focused on minimizing sources of contamination. Yield and reliability can be significantly compromised by ionic contamination.…