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Sunshell is a Superficially porous silica developed by ChromaNik Technologies Inc. It represents a significant step forward in Core Shell Technology due to its patented bonding technology.
Features of SunShell:
1.6um of Core and 0.5um of superficially porous silica layer
Same efficiency and high throughput as a Sub 2um particle
Same Pressure as a 3um particle (less than half that of 2um)
Available in C18, C8 and PFP phase
Excellent peak shape for all compound types
Extended pH range on C18 of 1.5 - 10
Low Bleed
Excellent batch and column reproducibility
SunShell C18 shows the same efficiency as a sub 2um C18. In comparisson between fully porous 2.6um and core shell 2.6um (SunShell), the SunShell shows lower values for A term, B term and C term of the Van Deemter equation. The core shell structure leads to higher preformance to compare with the fully porous structure.
In addition to the higher efficiencies, the backpressure of SunShell C18 is less than half that of a sub 2um C18 material (see below).
Why does Sunshell 2.6um core shell have the performance of a sub 2um standard silica particle?
The size distribution of SunShell particles is much narromwer than that of a conventional fully porous particle, so that the space among the particles in the column reduces and effiiciency increases by reducing Eddy Diffusion (multi-path diffusion) as term A in the Van Deemter equation suggests.
As shown below left, a core shell particle has a core so that the diffusion path of samples shortens and the mass transfer becomes quicker. This means that term C in the Van Deemter equation reduces. In other words, HETP is maintained even if flow rate increases. A 2.6um core shell particle shows the same column efficiency as a fully porous sub 2um particle.
The figure below right, shows the diffusion width of a sample in a 2.6um core shell particle and a 2um fully porous particle are almost the same. The 2.6um is superficially porous so that the diffusion width becomes narrower than the particle size. This similarity in diffusion accounts for the similar efficiencies of the two columns.
Please email us for upto date pricing and the latest offers
SKIP TO ORDERING INFORMATION
Sunshell is a Superficially porous silica developed by ChromaNik Technologies Inc. It represents a significant step forward in Core Shell Technology due to its patented bonding technology.
Features of SunShell:
1.6um of Core and 0.5um of superficially porous silica layer
Same efficiency and high throughput as a Sub 2um particle
Same Pressure as a 3um particle (less than half that of 2um)
Available in C18, C8 and PFP phase
Excellent peak shape for all compound types
Extended pH range on C18 of 1.5 - 10
Low Bleed
Excellent batch and column reproducibility
SunShell C18 shows the same efficiency as a sub 2um C18. In comparisson between fully porous 2.6um and core shell 2.6um (SunShell), the SunShell shows lower values for A term, B term and C term of the Van Deemter equation. The core shell structure leads to higher preformance to compare with the fully porous structure.
In addition to the higher efficiencies, the backpressure of SunShell C18 is less than half that of a sub 2um C18 material (see below).
Why does Sunshell 2.6um core shell have the performance of a sub 2um standard silica particle?
The size distribution of SunShell particles is much narromwer than that of a conventional fully porous particle, so that the space among the particles in the column reduces and effiiciency increases by reducing Eddy Diffusion (multi-path diffusion) as term A in the Van Deemter equation suggests.
As shown below left, a core shell particle has a core so that the diffusion path of samples shortens and the mass transfer becomes quicker. This means that term C in the Van Deemter equation reduces. In other words, HETP is maintained even if flow rate increases. A 2.6um core shell particle shows the same column efficiency as a fully porous sub 2um particle.
The figure below right, shows the diffusion width of a sample in a 2.6um core shell particle and a 2um fully porous particle are almost the same. The 2.6um is superficially porous so that the diffusion width becomes narrower than the particle size. This similarity in diffusion accounts for the similar efficiencies of the two columns.
Please email us for upto date pricing and the latest offers