Rare Earth Metal Ions

Rare earth metals ions were analyzed using IC R-621. Rare earth metals ions can be analyzed according to the difference of the speed in generating complex ions with alpha-hydroxyisobutyric acid. Baseline separation of fifteen rare earth metal ions is possible in 30 minutes.


Sample :
1. Lu, Lutetium
2. Yb, Ytterbium
3. Tm, Thulium
4. Er, Erbium
5. Ho, Holmium
6. Y, Yttrium
7. Dy, Dysprosium
8. Tb, Terbium
9. Gd, Gadolinium
10. Eu, Europium
11. Sm, Samarium
12. Nd, Neodymium
13. Pr, Praseodymium
14. Ce, Cerium
15. La, Lanthanum		 


Columns      : Shodex IC R-G (4.6mmID*10mm) + R-621 (6.0mmID*50mm)
Eluent       : (A); 0.1M alpha-Hydroxyisobutyric acid(pH4.0,adjusted by NaOH)
               (B); 1M alpha-Hydroxyisobutyric acid(pH4.0,adjusted by NaOH)
               Step gradient: 0min to 15min, 100% (A) 
                              15min to 25min, 20% (B) 
                              after 25min, 100% (B)
Reagent      : 0.005(W/V)% Arsenazo III/0.1M Formate(pH3.5)
Flow rate    : (Eluent); 1.0mL/min, (Reagent); 1.0mL/min
Detector     : VIS(655nm)
Column temp. : 40deg-C