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Trace Anion Analysis in Ultrapure Water Using an Electrolytic Water Purifier with a Compact Ion Chromatography System: Water Blank

Instrument Type: IC

Determinations of trace anions in ultrapure water are important to the electronics industry. In this record, determinations of ng/L (ppt) anions using large volume concentration are made possible by the Electrolytic Water Purifier(EWP) and AutoPrep modules. Calibration standards are prepared using the AutoPrep large and small loops and EWP-purified water diluent, thereby increasing sensitivity by eliminating sources of contamination. The trace anions are separated on an IonPac AS17-C column designed to improve low level sulfate determinations using a Dionex Integrion compact IC system.

TN112: Determination of Trace Anions in Ultrapure Water Using Capillary Ion Chromatography: LARGE LOOP INJECTION

Instrument Type: IC

In technical note TN112, trace anion determinations in ultrapure water by capillary IC are discussed. Both large volume direct injection using a large loop and using a concentrator column are discussed. Additionally installation tips are discussed.