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 SUNSHELL
Sunniest C18-HT, 2μm Column ....
Sunshell - Core Shell Technology Columns
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Features
- Low back pressure and high efficiency by precisely classified particle.
- High pressure packing (10,000 psi) using hard silica gels with high pressure resistant
leads long column life without any void.
- Unique bonding technique for Sunniest (patent pending).
- The most suitable inner surface of column by special grinding.
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It is difficult to end-cap on sub 2 μm or 2 μm silica gel particle as well as 3
mm or 5 mm silica gel particle. Most sub 2 μm or 2 μm C18 columns show smaller plate
number and higher tailing factor than Sunniest C18-HT. Sunniest C18-HT 2 μm shows
good peak shape for amitriptyline under not only metahnol/phosphate buffer mobile
phase but also acetonitrile/phosphate buffer mobile.
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Prominent features of SunShell C18
- Unique trifunctional bonding of the C18 groups to the Silica.
- Ensures good coverage of the Bonded Silanol groups on the Silica Surface.
- Ensures symmetrical Peak shapes with minimal tailing.
- Extended surface coverage offering performance at Extreme pH ensuring high column
life.
- Higher sample loadability allowing the higher sample size.
- UHPLC performance on any HPLC using the Sunshell Core shell technology.
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Characteristics
 It
is very important for 2 mm particle to have a capacity to resist pressure because
of high column back pressure. The larger a pore volume of silica gel, the weaker
a capacity to resist pressure. The silica gel with 0.85 ml/g of pore volume is used
for Sunniest C18-HT, 2 mm, so that it have a high capacity to resist pressure and
a high operating pressure.
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Sepration of Analgesics
 2
μm particle allows to reduce retention time because high efficiency is kept under
high flow rate conditions. As shown in the chromatograms, analytical time reduced
1/8 without sacrifices of separation by using 2 μm, 50 x 2.1 mm column instead of
5 μm 150 x 4.6 mm column.
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