Comparison between NH2P-40 3E and its Conventional Type (NH2P-50 4E)

Asahipak NH2P-40 3E is filled with smaller-sized gel, 4 micro-m, and packed in a 3.0 mm internal diameter (I.D.) column housing. The selected ID size allows the column to be used with a conventional LC system, i.e., without a need of semi-micro or any other special LC system. NH2P-40 3E provides higher resolution compared to Asahipak NH2P-50 4E. NH2P series is one of the best fits for the saccharides analysis using HILIC mode. The solvent required for NH2P-40 3E column is approximately 1/3 of the NH2P-50 4E column.


Sample : 0.5% each, 4micro-L
1. Fructose
2. Glucose
3. Sucrose
Data obtained by a conventional RI (0.25 mm ID tubing).

  NH2P-40 3E NH2P-50 4E
TPN (Sucrose) 11,300 8,700
Rs Fructose/Glucose 6.4 4.2
Glucose/Sucrose 8.5 5.9

Columns      : Shodex Asahipak NH2P-40 3E (3.0mmID*250mm), NH2P-50 4E (4.6mmID*250mm)
Eluent       : H2O/CH3CN=25/75
Flow rate    : (NH2P-40 3E) 0.35mL/min, (NH2P-50 4E) 1.0mL/min
Detector     : Shodex RI
Column temp. : 25deg-C