Transition Metal Ions (2) (T-521)

Transition metal ions were analyzed using IC T-521. An oxalic acid/tartaric acid eluent is used for the analysis of transition metal ions. Each transition metal ion generates complex ions with the organic acids in the eluent at a different rate. The easier the transition metal ions generate the complex ions, the faster they elute. The sample should be dissolved in a 40mM HCl aqueous solution.

Sample : 70micro-L
1. Fe3+
2. Cu2+
3. Ni2+
4. Zn2+
5. Co2+
6. Pb2+
7. Fe2+

Column       : Shodex IC T-521 (4.6mm*150mm)
Eluent       : 6mM Oxalic acid + 3mM Citric acid + 0.1mM NaN3 + 0.1mM NaHSO3(pH4.1 adjusted by KOH)
Reagent      : 0.2mM *PAR + 3M NH4OH + 1M CH3COOH (Mixing coil(0.5mmID*1m))
Flow rate    : (Eluent); 1.0mL/min, (Reagent); 1.0mL/min
Detector     : VIS(530nm)
Column temp. : 40deg-C
*PAR : 4-(2-Pyridylazo)resorcinol