Autosamplers
Ion Chromatography Determines Polyacrylic Acid in Pressurized Water Reactor Secondary Feed Water
Nov 22 2013
Thermo Fisher Scientific has developed a simple and economical size-exclusion chromatography (SEC) analysis method that enables nuclear power plants (NPPs) with pressurized water reactors to determine low concentrations of polyacrylic acid (PAA) in secondary feed water containing ethanolamine (ETA) and hydrazine. Application Note 1058: Determination of Polyacrylic Acid in Nuclear Power Plant Pressurized Water Reactor Secondary Feed Water demonstrates that a SEC column separation with detection at 200 nm can determine PAA with a method detection limit of 2.6 μg/L. This method uses water as the eluent to maximise sensitivity and eliminate the need for eluent preparation.
To maximise plant output and reduce costly corrosion-related failures, many NPP operators add corrosion inhibitors such PAA, ETA, and hydrazine to their steam generator water. These operators need a way of accurately measuring PAA to ensure that the added amount is within the plant’s administrative limits. To separate PAA from small molecules present in the secondary feed water, SEC is generally considered the most effective method.
This note and many others can be found online under the Documents tab.
Digital Edition
Chromatography Today - Buyers' Guide 2022
October 2023
In This Edition Modern & Practical Applications - Accelerating ADC Development with Mass Spectrometry - Implementing High-Resolution Ion Mobility into Peptide Mapping Workflows Chromatogr...
View all digital editions
Events
Apr 23 2024 Kintex, South Korea
Apr 23 2024 Seoul, South Korea
Apr 28 2024 Montreal, Quebec, Canada
May 05 2024 Seville, Spain
May 15 2024 Birmingham, UK