Shodex: Packed Columns for HPLC Analysis

Yttrium Ore

Rare earth metal ions in yttrium ore were analyzed using IC R-621. Yttrium ore is heated and dissolved in 1% HCl solution and diluted to 0.2% with purified water.

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