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

L × I.D. 25 cm × 4.6 mm, HPLC Column

Synonym(s):

Ascentis® Express 90 Å AQ-C18, 5 μm HPLC Column

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About This Item

UNSPSC Code:
41115709
NACRES:
SB.52

product name

Ascentis® Express 90 Å AQ-C18, 5.0 μm HPLC Column, column L × I.D. 25 cm × 4.6 mm

material

stainless steel column

Quality Level

100

agency

suitable for USP L1

product line

Ascentis®

feature

endcapped

packaging

1 ea of

extent of labeling

5.6% Carbon loading

technique(s)

HPLC: suitable
LC/MS: suitable

column L × I.D.

25 cm × 4.6 mm

surface area

90 m2/g

matrix

Fused-Core® silica particle platform
superficially porous particle

matrix active group

AQ-C18, polar modified bonding phase

particle size

5 μm

pore size

90 Å pore size

operating pH range

2-9

separation technique

reversed phase

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General description

Ascentis® Express AQ-C18 is a high-speed, high-performance liquid chromatography column based on the 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 AQ-C18 is a C18 bonded phase prepared using a proprietary procedure that incorporates a small amount of polar silane which makes the phase resistant to dewetting. This resistance to dewetting allows the users of the AQ-C18 phase to run highly-aqueous (up to 100%) mobile phases. The modified C18 phase exhibits similar retention to Ascentis® Express C18 with a different selectivity, adding a valuable alternative for resolving difficult separations. The AQ-C18 is a reversed-phase packing that can be used for basic, acidic, and neutral compounds.

Application

HPLC Analysis of Water Soluble Vitamins on Ascentis® Express AQ-C18, 5 μm

Analysis Note

The target analytes include acids, bases, and polar analytes.

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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Certificates of Analysis (COA)

Lot/Batch Number
USUQE001258
USUQE001255
USUQE001254
USUQE001253
USUQE001252

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