2.6 µm core shell particle provides the same diffusion width as 2.0 µm totally porous particle.

SunShell C18 column shows the same efficiency as sub-2 µm C18 column.

SunShell C18 column shows less than half the backpressure compared to sub-2 µm C18 columns.

Under a constant backpressure condition, SunShell C18 column shows two times higher performance than sub-2 µm columns.

By providing significantly increased column efficiency and resolution without the high back pressure, chromatographers can achieve UHPLC results on HPLC system.

HPLC system

100 mm of SunShell column provides the same number of theoretical plates (efficiency) as the 250 mm of conventional fully porous 5 µm column. Consequently, the analysis time can be reduced to 1/3 in the HPLC system.

UHPLC system

In the UHPLC system, the theoretical plates can be further increased by about 20 % when using a higher flow rate. The analysis time can be reduced to 1/6 compared with 250 mm of conventional fully porous 5 µm column.

Pyridine was used as a test of surface silanol activity. Only SunShell C18 column showed a sharp peak for pyridine.

Under accelerated Low pH stability test, pH 1.0 at 80 °C, SunShell C18 column has kept 90% retention for 100 hours.

Under accelerated pH 10 stability test, SunShell C18 column shows superior stability compared with other core shell C18 phases.

A highly basic compound, Amitriptyline was used for loading capacity test. SunShell showed up to 100 times higher loading capacity compared to other core shell columns.

Retention and back pressure
SunShell shows the highest retention and the lowest backpressure compared with other core shell columns.

Chelating compound
Metal impurities in the core shell particle cause the peak tailing for 8-Quinolinol (Oxine).

Acidic compound
Formic acid is used for the test of peak tailing. SunShell, Brand K and P show sharp peaks.

- C18 bonded porous glass filter (4 mm ID, 4 mm thickness)
- Low dead volume
- Compatible with the column I.D. from 2.1 mm to 4.6 mm