Tap water and red wine were analyzed using IC Y-521.
Tap water and red wine contain Zn2+ as well as Mg2+ and Ca2+. Since the trivalent cations such as Fe3+ and Al3+ are changed into complex ions and elute first, they never remain in the columns nor damage them.
Column : Shodex IC Y-521 (4.6mmID*150mm)
Eluent : 4mM Tartaric acid + 2mM Ethylenediamine aq.
Flow rate : 1mL/min.
Detector : Shodex CD, Polarity(-)
Column temp. : 40°C