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AU142: Improved Determination of Trace Anions in High Purity Waters by High-Volume Direct Injection
Description
This document describes the use of the EG40 potassium hydroxide (KOH) eluent generator with the IonPac AS15-5µm column for trace anion analysis. The EG40 generates high-purity and carbonate-free hydroxide eluents on-line to improve the method performance for determination of target analytes at trace levels. The high-volume direct injection technique is used to achieve sensitive detection at sub-µg/L levels. The analytes are detected by suppressed conductivity with a 2-mm ASRS-ULTRA operated in the Gas Assisted Recycle mode. This Update expands on work presented in Dionex Technical Note 48.| Market: | Environmental |
| Keywords: | direct injection, Eluent Generation, Formate, High purity water, fluoride, Nitrate, trace anions, Nitrite, Chloride, Oxalate, phosphate, Acetate, Sulfate, IonPac AS15 column, suppressed conductivity detection, Glycolate, Bromide, TN 73892, TN73892, AU 142 |
| Matrix: | High purity water |
| Author: | Edward Kaiser and Jeff Rohrer |
| Affiliation: | Thermo Fisher Scientific, Sunnyvale, CA USA |
For Research Use Only. Not for use in diagnostic procedures.
