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581516-U
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Ascentis Si

by Sigma Aldrich

Ascentis® Si HPLC Column
3 μm particle size, L × I.D. 10 cm × 1.0 mm           
 
Ascentis®
We have placed heavy emphasis on optimizing Ascentis phases with relation to the three terms of the resolution equation: efficiency, retention and selectivity. However, our strongest emphasis has been on the most powerful term, selectivity. Together, Ascentis bonded phases have a wide range of selectivities. It is likely that one or more Ascentis phase will accomplish any small molecule HPLC separation. Packed in micro- to preparative hardware dimensions, Ascentis products cover all HPLC application areas, including the most sensitive trace-level analyses.

Ascentis Si
Suitable for L3 per USP

The Ascentis family of columns is the fourth generation of HPLC column technology from Supelco scientists. Ascentis columns are bonded on high purity, 100 Angstrom silica including 3, 5, and 10 micron particle size. Columns are designed for small molecule applications and are scalable from micro columns (1.0 mm I.D.) to preparative dimensions (50 mm I.D.). The family includes C18, C8, Phenyl, Si and embedded polar group phase, RP-Amide.

The Ascentis Si is a high loading capacity silica with excellent peak shape. The Ascentis Si performs in both normal-phase and HILIC/ANP (aqueous normal phase) mode.

Application areas:
Geometrical isomers Isomers Non-polar compounds Polar compounds Positional isomers Small molecules Steroids Vitamins
Specification
Vendor Sigma Aldrich Pore size 100
Brand Ascentis Si Surface Area 450
Modifification Silica Endcapped No
Mode Normal-Phase Operating Temperature 70
Particle Size pH stability from 2.0
Length pH stability to 6.0
Internal Diameter
Similar columns Columns with same mode & modification — across all brands
VendorBrandModeModification Int. diam.LengthParticlesPoresPrice
Phenomenex Luna Silica (2) Normal-Phase Silica 4.6 mm 150 mm 3.0 μm 100 Å On request
ES Industries Chromegasphere SI 120 (Spherical) Normal-Phase Silica 4.6 mm 150 mm 10.0 μm 120 Å On request
KYA Technologies Corporation HiQ Sil-120 Normal-Phase Silica 7.8 mm 250 mm 10.0 μm 120 Å On request
Agilent Technologies Agilent Polaris Normal-Phase Silica 2.0 mm 50 mm 3.0 μm 180 Å On request
Phenomenex Luna Silica (2) Normal-Phase Silica 4.6 mm 250 mm 3.0 μm 100 Å On request
GL Sciences Inertsil WP300 SIL Normal-Phase Silica 4.0 mm 250 mm 5.0 μm 300 Å On request
BISCHOFF ProntoSIL 200-3-Si Normal-Phase Silica 4.6 mm 100 mm 3.0 μm 200 Å On request
RESTEK Ultra Normal-Phase Silica 4.6 mm 150 mm 3.0 μm 100 Å On request
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