phosphoric ion is not present in this sample, F–, Cl–,
NO3– and SO42- can be separated in a short time without t he interference of phosphoric ion peak using this eluent. When both F– and H2PO4– are present, they cannot be separated each othe with this analysis conditionr.
Sample : Tap water (Water), 100micro-L
Column : Shodex IC I-524A (4.6mmID*100mm) Eluent : 2.5mM Phthalic acid + 2.3mM Tris(hydroxymethyl)aminomethane aq. Flow rate : 1.2mL/min Detector : Shodex CD Column temp. : 40°C