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Ascentis® Express 90 Å Phenyl-Hexyl (2 μm) HPLC Columns

L × I.D. 5 cm × 2.1 mm UHPLC Column

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About This Item

UNSPSC Code:
41115700
NACRES:
SB.52

product name

Ascentis® Express Phenyl-Hexyl, 2 μm UHPLC Column, 2 μm particle size, L × I.D. 5 cm × 2.1 mm

material

stainless steel column

Quality Level

Agency

suitable for USP L11

product line

Ascentis®

feature

endcapped

manufacturer/tradename

Ascentis®

packaging

1 ea of

parameter

1000 bar max. pressure (14500 psi)
60 °C temp. range

technique(s)

LC/MS: suitable
UHPLC-MS: suitable
UHPLC: suitable

L × I.D.

5 cm × 2.1 mm

surface area

120 m2/g

impurities

<5 ppm (metals)

matrix

Fused-Core particle platform
superficially porous particle

matrix active group

dimethylphenylhexyl phase

particle size

2 μm

pore size

90 Å pore size

pH

2-9

application(s)

food and beverages

separation technique

reversed phase

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General description

Ascentis® Express 2μm Phenyl-Hexyl UHPLC columns are based on a 90 Å 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 0.4-micron thick porous shell and the small overall particle size of 2-microns. The bonded, endcapped, dimethylphenylhexyl stationary phase of Ascentis Express 2μm Phenyl-Hexyl provides a stable, reversed phase packing with enhanced p-p and mild steric interactions due to the relatively long-chain hexyl linkage to the base silica. Ascentis Express 2μm Phenyl-Hexyl can be used for basic, acidic, or neutral compounds with alternate selectivity from C18.

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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.

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C M Chavez-Eng et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1011, 204-214 (2016-01-17)
An ultra-high performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method for the simultaneous determination of (4S,5R)-5-[3,5-bis (trifluoromethyl)phenyl]-3-{[4'-fluoro-5'-isopropyl-2'-methoxy-4-(trifluoromethyl)biphenyl-2-yl] methyl}-4-methyl-1,3-oxazolidin-2-one (anacetrapib, I) and [(13)C5(15)N]-anacetrapib, II in human plasma has been developed to support a clinical study to determine the absolute bioavailability of I.
E Lesellier
Journal of chromatography. A, 1266, 34-42 (2012-11-03)
The recent introduction of new stationary phases for liquid chromatography based on superficially porous particles, called core-shell or fused-core, dramatically improved the separation performances through very high efficiency, due mainly to reduced eddy diffusion. However, few studies have evaluated the
Petr Chocholouš et al.
Talanta, 103, 221-227 (2012-12-04)
Currently, for Sequential Injection Chromatography (SIC), only reversed phase C18 columns have been used for chromatographic separations. This article presents the first use of three different stationary phases: three core-shell particle-packed reversed phase columns in flow systems. The aim of
Ivona Lhotská et al.
Analytical and bioanalytical chemistry, 408(12), 3319-3329 (2016-03-20)
A new fast and sensitive method based on on-line solid-phase extraction on a fused-core precolumn coupled to liquid chromatography with fluorescence detection has been developed for ochratoxin A (OTA) and citrinin (CIT) determination in lager beer samples. Direct injection of
Alex D Batista et al.
Talanta, 133, 142-149 (2014-12-02)
On-line sample pretreatment (clean-up and analyte preconcentration) is for the first time coupled to sequential injection chromatography. The approach combines anion-exchange solid-phase extraction and the highly effective pentafluorophenylpropyl (F5) fused-core particle column for separation of eight sulfonamide antibiotics with similar

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Small molecules are ions and compounds of molecular weight typically less than 900 daltons. These compounds can be effectively separated and analyzed by HPLC, UHPLC and LC-MS using mainly silica particles or monolithic stationary phases with a broad range of column chemistries (modifications).

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