Epoxy resin (jER1009) was analyzed using GPC HK series, organic SEC (GPC) columns for ultra-rapid analysis. When analyzing low molecular weight samples, the separation of the lower molecular region becomes insufficient using only HK-404L, and a part of the sample overlaps the solvent peak (vacant peak). When HK-401 which is specialized for separation of low molecular weight regions, is connected with HK-404L in series, the analysis of the broad range from high molecular weight to low molecular weight can be achieved.


Sample : 5 µL
jER1009 (Epoxy resin)
0.1 %(w/v)

*Peak heights are adjusted to make it easy to compare them.

Columns      : (Upper) Shodex GPC HK-404L (4.6 mm I.D. x 150 mm)
               (Lower) Shodex GPC HK-404L + HK-401 (4.6 mm I.D. x 150 mm each)  
Eluent       : THF                                     
Flow rate    : 1.0 mL/min                                
Detector     : RI (small cell volume)                         
Column temp. : 40 °C