Separation of Na+ and NH4+ (1) (Non-suppressor Method)

With about twice the theoretical plate number and about 1.3 times the Na⁺/NH₄⁺ resolution, YS-50 can be applied to NH₄⁺ analysis at a high concentration of Na⁺ (Na⁺:NH₄⁺=5,000:1 is possible).
Please refet to Separation of Na⁺ and NH₄⁺ (2) (Suppressor Method)

Sample : 10micro-L
Na⁺ 50ppm
NH₄⁺ 0.01ppm

Column       : Shodex IC YS-50 (4.6mmID*125mm) 
Eluent       : 4mM Methanesulfonic acid aq. 
Flow rate    : 1.0mL/min
Detector     : Non-suppressed conductivity
Column temp. : 40deg-C