SunShell 2-EP, 2.6 μm

For Supercritical fluid Chromatography

2.6 μm core shell column shows only one-third of back pressure to compare with 1.7 μm fully porous column although both show almost the same efficiency. By such low back pressure, a difference of density of supercritical fluid between an inlet and an outlet of the column is reduced. Consequently,
2.6 μm core shell column performs a superior separation for SFC.

Characteristics of SunShell 2-EP

  Core shell silica  
 
Particle size Pore diameter Specific surface area
Carbon content Bonded phase End-capping Maximum operating pressure Available pH range
SunShell 2-EP
2.6 μm 9 nm 150 m2/g
2.5% 2-Ethylpyridine no 60MPa or 8,570 psi 2-7.5

Comparison between SunShell 2-EP and 1.7 μm fully porous 2-EP

Figure 1: Chromatogram of the separation for he 17-
component mix using the Sun Shell 2-EP 150 x 3.0 mm column. A methanol gradient of < 2 minutes was used on the Agilent 1260 Infinity SFC system. SFC
conditions: flow rate: 4.0mL/min; outlet pressure 160
bar; column temperature 55⁰C. Gradient program: 5.0-
7.5% in 0.20 min, then 7.5-20% in 1.3 min and held at 20% for 0.2 min.

Figure 2: Chromatogram of the separation for the 17-component mix using Acquity UPC2 Viridis 2-EP 100
x 3.0 mm column. 16 of the 17 components were
resolved. A methanol gradient of < 2 minutes was
used on the Agilent 1260 Infinity SFC system. SFC
conditions: flow rate 3.5 mL/min; outlet pressure 160
bar; and column temperature 70⁰C. Gradient program:
5.0-12.5% in 1.0 min, 12.5% for 0.25 min, then 12.5-20% in 0.75 min.