584598-U
Ascentis® Express 90 Å Biphenyl (5 μm) HPLC Columns
L × I.D. 0.5 cm × 3 mm, HPLC Guard Cartridge, pack of 3 ea
Synonym(s):
Ascentis® Express 90 Å Biphenyl, 5.0 μm HPLC Column
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About This Item
UNSPSC Code:
41115700
NACRES:
SB.52
Particle size:
5.0 μm
Matrix active group:
Biphenyl (dimethylbiphenyl) bonding phase
Pore size:
90 Å pore size
Matrix:
Fused-Core® particle platform, superficially porous particle
Product Name
Ascentis® Express 90 Å Biphenyl, 5.0 μm HPLC Guard Cartridge, pack of 3 ea, cartridge L × I.D. 0.5 cm × 3 mm
material
stainless steel column
agency
suitable for USP L11
product line
Ascentis®
feature
endcapped
packaging
pack of 3 ea
extent of labeling
5.5% Carbon loading
technique(s)
HPLC: suitable, LC/MS: suitable
cartridge L × I.D.
0.5 cm × 3 mm
surface area
90 m2/g
matrix
Fused-Core® particle platform, superficially porous particle
matrix active group
Biphenyl (dimethylbiphenyl) bonding phase
particle size
5.0 μm
pore size
90 Å pore size
operating pH range
2-9
separation technique
reversed phase
General description
Ascentis® Express 90 Å Biphenyl is a high-speed, high-performance liquid chromatography column based on a superficially porous Fused-Core® particle design. The particle provides a thin porous shell of high-purity silica surrounding a solid silica core. This particle design exhibits very high column efficiency due to the shallow diffusion paths in the 0.6 μm thick porous shell and the small overall particle size of 5 μm. The bonded, densely endcapped, dimethyl-biphenyl stationary phase provides a stable, reversed phase packing with enhanced pi-pi and mild steric interactions due to the two sequential phenyl groups bonded to the base silica. The 90 Å Biphenyl can be used for basic, acidic, or neutral compounds with alternate selectivity from C18 and is especially useful for separating peaks that elute early on C18 and other phenyl phases.
Analysis Note
Target analytes include electron-poor molecules, aromatic or unsaturated compounds (ketones, nitriles, alkenes).
Legal Information
Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany
Fused-Core is a registered trademark of Advanced Materials Technology, Inc.
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