Spursil C18-EP

– 39 columns

Vendor: Dikma Technologies Inc.

Spursil™ polar-modified phases are based on ultra high-purity silica and novel polar modification technology. The unique bonded phases maximize polar retention and selectivity, while virtually eliminating silanol activity. The resulting polar-modified packing material contains a surface which is easily "wetted" with polar eluents and can run in highly aqueous conditions. The polar group also seems to play a role in base deactivation. We have seen some evidence that hydrogen bonding occurs between certain polar linkers and the silica surface, thereby decreasing the interaction of such silanols with basic components in the sample. Additionally, polar-modified phases often provide selectivity quite different from standard C18 phases.

Combine high-purity silica with unique polar modification technology
Maintain characteristics of conventional reversed phases
Unique selectivity and enhanced resolution
Reduced silanol interactions and improved peak shape for basic analytes
Stable retention in highly aqueous mobile phase conditions
Enhanced retention for polar compounds
Extended range pH stability
Choose from a variety of selectivities & hardware formats

Standard reversed-phase columns, particularly C18 columns, often suffer from "phase collapse" and the retention of the compounds is severely diminished when used in combination with highly aqueous phases. This phenomenon is substantially reduced with Spursil™ because the polar modifications make the phase less hydrophobic and more wettable. Polar-modified phases remain fully extended in aqueous phases, allowing increased interaction between samples and the bonded phase. Spursil™ columns show good retention of polar compounds which tend to elute in the void volume on standard ODS phases.

Brand specifications

Every parameter recorded for every column in this Brand is shown here. A single value applies across the Brand; multiple values show what is recorded across its columns.

Mode Reversed-Phase

Modification Silica/C18

Pore Size (Å) 100

Surface Area 440

Carbon Load, % 24.0

Endcapped Yes

Max Pressure 3000 / 4000 / 5000

pH stability from 1.5

pH stability to 10.0

Length Available: 30 – 250 mm

Internal Diameter Available: 2.1 – 50 mm

Particle Size Available: 3 – 10 μm

Pore Size Recorded value 100 Å

39 columns shown


82101	150	4.6	5.0	100
82102	150	2.1	5.0	100
82103	50	2.1	5.0	100
82104	50	2.1	3.0	100
82106	250	4.6	5.0	100
82107	100	2.1	5.0	100
82109	250	2.1	5.0	100
82110	50	4.6	5.0	100
82111	100	4.6	5.0	100
82112	100	2.1	3.0	100
82113	150	2.1	3.0	100
82115	250	2.1	3.0	100
82116	50	4.6	3.0	100
82117	100	4.6	3.0	100
82118	150	4.6	3.0	100
82120	250	4.6	3.0	100
82121	50	3.0	3.0	100
82122	100	3.0	3.0	100
82123	150	3.0	3.0	100
82124	250	3.0	3.0	100
82125	50	3.0	5.0	100
82126	100	3.0	5.0	100
82127	150	3.0	5.0	100
82128	250	3.0	5.0	100
82129	30	3.0	3.0	100
82130	30	2.1	3.0	100
82131	30	4.6	3.0	100
82132	30	3.0	5.0	100
82133	30	2.1	5.0	100
82134	30	4.6	5.0	100
82135	250	4.6	10.0	100
82136	250	10.0	10.0	100
82137	250	21.2	10.0	100
82138	250	10.0	5.0	100
82139	250	21.2	5.0	100
82140	250	30.0	5.0	100
82141	250	50.0	5.0	100
82142	250	30.0	10.0	100
82143	250	50.0	10.0	100

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