AN185: Determination of Trace Organic Acids and Inorganic Anions in Boric Acid-Treated Power Plant Waters Using an Automated Reagent-Free Ion Chromatography System

Instrument Type: IC

Boron as boric acid is used to control the nuclear reaction in pressurized water reactors because of its strong neutron-absorbing characteristics. To prevent corrosion, anionic contamination is monitored. Here sub-ppb concentrations of inorganic anions in a large volume sample are determined in borated waters using matrix elimination through the use of a CR-CTC trap column. The anions were collected on a concentrator column, eluted and determined using an electrolytically generated hydroxide gradient on IonPac AS15 column. This is an improvement over using borated eluents (AN166).

AN166: Application of Eluent Generation for Trace AnionAnalysis of Borated Waters

Instrument Type: IC

Boron as boric acid is used to control the nuclear reaction in pressurized water reactors because of its strong neutron-absorbing characteristics. To prevent corrosion, anionic contamination is monitored. Here sub-ppb concentrations of inorganic anions are determined in borated waters (<7500 mg/L boron) by large volume, direct injection using a tetraborate gradient on IonPac AS14 column. The tetraborate eluent is automatically generated inline by titrating 50 mM boric acid with electrolytically generated KOH. This is an improvement over using manually prepared solutions (AU102, AU191).