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Catalog Search results Ult5P203

Ult5P203

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Ultisil XB-Phenyl

by Welch Materials

Ultisil XB Phenyl phase is less retentive than conventional C18 and C8 phases, but more retentive than standard cyano phase. Due to their ability to participate in π-π interactions, XB-Phenyl columns may actually more retentive than C18 or C8 columns towards certain polar aromatic compounds, depending on running conditions. The selectivity for highly polar aromatics, which are poorly retained on alkyl-bonded phases, combined with the reduced retentivity towards nonpolar compounds, makes XB-Phenyl an excellent choice for the analysis of complex mixtures of polar and non-polar analytes.

High surface coverage and exhaustive double end-capping
Excellent for aromatic, polar compounds and difficult pharmaceuticals
Different selectivity to XB-C18, XB-C8 and XB-CN
Exceptional batch-to-batch and column-to-column reproducibility
Available in dimensions from analytical to preparative for all sample sizes

Application areas:

Aromatic compounds Non-polar compounds Pharmaceutical molecules Polar compounds

Specification

Vendor	Welch Materials	Pore size	120
Brand	Ultisil XB-Phenyl	Surface Area	320
Modifification	Silica/Phenyl	Carbon Load, %	13.0
Mode	Reversed-Phase	Endcapped	Yes
Particle Size		pH stability from	1.5
Length		pH stability to	10.0
Internal Diameter

Similar columns Columns with same mode & modification — across all brands

Vendor	Brand	Mode	Modification	Int. diam.	Length	Particles	Pores	Price
ACE	ACE Phenyl-300	Reversed-Phase	Silica/Phenyl	0.5 mm	150 mm	3.0 μm	300 Å	On request
KNAUER	Eurospher II	Reversed-Phase	Silica/Phenyl	4.6 mm	100 mm	5.0 μm	100 Å	On request
KYA Technologies Corporation	HiQ Sil Ph-120	Reversed-Phase	Silica/Phenyl	4.6 mm	35 mm	10.0 μm	120 Å	On request
—	—	Reversed-Phase	Silica/Phenyl	3.0 mm	75 mm	10 μm	120 Å	On request
Agilent Technologies	ZORBAX Eclipse XDB	Reversed-Phase	Silica/Phenyl	3.0 mm	250 mm	5.0 μm	80 Å	On request
Higgins Analytical	CLIPEUS Phenyl	Reversed-Phase	Silica/Phenyl	0.3 mm	250 mm	5.0 μm	120 Å	On request
ACE	ACE Phenyl-300	Reversed-Phase	Silica/Phenyl	10.0 mm	50 mm	5.0 μm	300 Å	On request
Welch Materials	Ultisil XB-Phenyl	Reversed-Phase	Silica/Phenyl	3.0 mm	250 mm	5.0 μm	120 Å	On request

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