Description General description This certified eluent concentrate for ion chromatography is traceable by potentiometric titration to NIST Standard Reference Material. It is certified in accordance with ISO Guide 31. All details about exact content, uncertainty, traceability and expiry date are described in the certificate. Application Metrohm IC application note AN-C-163: Cations in brine with minimal dilution and sub-μL injection. Metrohm IC application note AN-C-172: Cations in snow from an open field. Metrohm IC application note AN-C-143: Ammonia in addition to standard cations in maritime pore water. Linkage Visit the IC Portal to learn more Preparation Note Prepared with 2,6-pyridinecarboxylic acid and high purity water (18.2 MΩ, 0.2 μm filtered)