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Ascentis® Express 90 Å C18 (5 μm) HPLC Columns

L × I.D. 7.5 cm × 2.1 mm, HPLC Column

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About This Item

UNSPSC Code:
41115700
eCl@ss:
32110501
NACRES:
SB.52

product name

Ascentis® Express C18, 5 μm HPLC Column, 5 μm particle size, L × I.D. 7.5 cm × 2.1 mm

material

stainless steel column

Quality Level

Agency

suitable for USP L1

product line

Ascentis®

feature

endcapped

manufacturer/tradename

Ascentis®

packaging

1 ea of

parameter

60 °C temp. range
600 bar max. pressure (9000 psi)

technique(s)

HPLC: suitable
LC/MS: suitable

L × I.D.

7.5 cm × 2.1 mm

surface area

90 m2/g

impurities

<5 ppm metals

matrix

Fused-Core particle platform
superficially porous particle

matrix active group

C18 (octadecyl) phase

particle size

5 μm

pore size

90 Å pore size

operating pH

2-9

application(s)

food and beverages

separation technique

reversed phase

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General description

Ascentis® Express 5 μm C18 is a high-speed, high-performance liquid chromatography column based on the highly efficient Fused-Core® particle design. The Fused-Core® 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 0.5-micron thick porous shell and the highly uniform overall particle size of 5-microns. The densely bonded, extensively endcapped dimethyloctadecyl stationary phase of Ascentis Express 5 μm C18 provides a stable, reversed-phase packing that can be used for basic, acidic, or neutral compounds.

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Legal Information

Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany
Fused-Core is a registered trademark of Advanced Materials Technology, Inc.

Regulatory Information

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Journal of pharmaceutical and biomedical analysis, 51(1), 131-137 (2009-09-18)
Fused-core silica stationary phases represent a key technological advancement in the arena of fast HPLC separations. These phases are made by fusing a 0.5 microm porous silica layer onto 1.7 microm nonporous silica cores. The reduced intra-particle flow path of
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