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TN48 (Method 1): Determination of Trace Anions in High-Purity Water by High-Volume Direct Injection with Online Eluent Generation Be the first to rate this application

determination trace anions highpurity water


This note describes the use of an eluent generator with the high-volume direct-injection technique to determine trace anions in high-purity waters. The ability to generate high-purity and carbonate-free eluents on-line improves performance for trace-level analysis. Retention time reproducibility is improved, especially for early-eluting species. The baseline shift from the hydroxide gradient is significantly reduced. Two columns are described: the 2-mm IonPac AS11 & 2-mm AS15. Common inorganic anions and low molecular weight organic acids are determined below μg/L levels in less than 35 min.
Market: Water Analysis
Keywords: Formate, Reagent Free Ion Chromatography (RFIC), fluoride, Nitrate, Glycolate, trace anions, Nitrite, Chloride, Oxalate, phosphate, Acetate, Sulfate, High-purity water, High-Volume Direct Injection, IonPac AS11 Analytical column
Matrix: High purity water
Author: Ed Kaiser and Jeff Rohrer
Affiliation: Thermo Fisher Scientific
Uploaded on 10/22/2015.

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