SiELC Obelisc HPLC Columns

SiELC Obelisc N is a mixed-mode column based on LiSC (Liquid Separation Cell technology) and is characterized by its highly polar properties, making it well-suited for separating polar and charged analytes. LiSC technology is based on a chemical modification of the silica gel pores that creates a liquid separation cell with its own charge characteristics, ionic strength, and hydrophobic properties.

Obelisc N has normal phase characteristics, with a stationary phase with anions close to the surface separated from cationic groups by a hydrophilic chain. The column supports multiple separation modes, including normal phase, HILIC, and ion exclusion.

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Part Number	Short Description	Phase	Particle Size	ID	Length	Pore Size	Type	Price
ON-46.250.0510	Obelisc N Column 4.6 x 250mm 5um 100A	Obelisc N	5 um	4.6 mm	250 mm	100 A	Column	£1,280.36
ON-46.150.0510	Obelisc N Column 4.6 x 150mm 5um 100A	Obelisc N	5 um	4.6 mm	150 mm	100 A	Column	£1,170.08
ON-32.250.0510	Obelisc N Column 3.2 x 250mm 5um 100A	Obelisc N	5 um	3.2 mm	250 mm	100 A	Column	£1,237.47
ON-46.100.0510	Obelisc N Column 4.6 x 100mm 5um 100A	Obelisc N	5 um	4.6 mm	100 mm	100 A	Column	£1,145.58
ON-32.150.0510	Obelisc N Column 3.2 x 150mm 5um 100A	Obelisc N	5 um	3.2 mm	150 mm	100 A	Column	£1,176.20
ON-32.100.0510	Obelisc N Column 3.2 x 100mm 5um 100A	Obelisc N	5 um	3.2 mm	100 mm	100 A	Column	£1,149.26
ON-46.050.0510	Obelisc N Column 4.6 x 50mm 5um 100A	Obelisc N	5 um	4.6 mm	50 mm	100 A	Column	£1,035.31
ON-46.010.0510	Obelisc N Column 4.6 x 10mm 5um 100A	Obelisc N	5 um	4.6 mm	10 mm	100 A	Column	£851.53
ON-32.G.0510	Obelisc N Guard Column 3.2 x 10mm 5um 100A, 2pk	Obelisc N	5 um	3.2 mm	10 mm	100 A	Guard	£416.57
ON-46.G.0510	Obelisc N Guard Column 4.6 x 10mm 5um 100A, 2pk	Obelisc N	5 um	4.6 mm	10 mm	100 A	Guard	£416.57
ON-05.100.0510	Obelisc N Column 0.5 x 100mm 5um 100A	Obelisc N	5 um	0.5 mm	100 mm	100 A	Column	£1,372.24
ON-05.150.0510	Obelisc N Column 0.5 x 150mm 5um 100A	Obelisc N	5 um	0.5 mm	150 mm	100 A	Column	£1,384.48
ON-05.250.0510	Obelisc N Column 0.5 x 250mm 5um 100A	Obelisc N	5 um	0.5 mm	250 mm	100 A	Column	£1,409.00
ON-10.010.0510	Obelisc N Column 1 x 10mm 5um 100A	Obelisc N	5 um	1.0 mm	10 mm	100 A	Column	£913.39
ON-10.025.0510	Obelisc N Column 1 x 25mm 5um 100A	Obelisc N	5 um	1.0 mm	25 mm	100 A	Column	£1,005.31
ON-10.050.0510	Obelisc N Column 1 x 50mm 5um 100A	Obelisc N	5 um	1.0 mm	50 mm	100 A	Column	£1,096.57
ON-10.100.0510	Obelisc N Column 1 x 100mm 5um 100A	Obelisc N	5 um	1.0 mm	100 mm	100 A	Column	£1,133.34
ON-10.150.0510	Obelisc N Column 1 x 150mm 5um 100A	Obelisc N	5 um	1.0 mm	150 mm	100 A	Column	£1,151.71
ON-10.250.0510	Obelisc N Column 1 x 250mm 5um 100A	Obelisc N	5 um	1.0 mm	250 mm	100 A	Column	£1,200.72
ON-10.G.0510	Obelisc N Guard Column 1 x 10mm 5um 100A, 2pk	Obelisc N	5 um	1.0 mm	10 mm	100 A	Guard	£416.57
ON-21.010.0510	Obelisc N Column 2.1 x 10mm 5um 100A	Obelisc N	5 um	2.1 mm	10 mm	100 A	Column	£913.39
ON-21.025.0510	Obelisc N Column 2.1 x 25mm 5um 100A	Obelisc N	5 um	2.1 mm	25 mm	100 A	Column	£1,005.31
ON-21.050.0510	Obelisc N Column 2.1 x 50mm 5um 100A	Obelisc N	5 um	2.1 mm	50 mm	100 A	Column	£1,096.57
ON-21.100.0510	Obelisc N Column 2.1 x 100mm 5um 100A	Obelisc N	5 um	2.1 mm	100 mm	100 A	Column	£1,133.34
ON-21.150.0510	Obelisc N Column 2.1 x 150mm 5um 100A	Obelisc N	5 um	2.1 mm	150 mm	100 A	Column	£1,151.71
ON-21.250.0510	Obelisc N Column 2.1 x 250mm 5um 100A	Obelisc N	5 um	2.1 mm	250 mm	100 A	Column	£1,200.72
ON-21.G.0510	Obelisc N Guard Column 2.1 x 10mm 5um 100A, 2pk	Obelisc N	5 um	2.1 mm	10 mm	100 A	Guard	£416.57
ON-32.050.0510	Obelisc N Column 3.2 x 50mm 5um 100A	Obelisc N	5 um	3.2 mm	50 mm	100 A	Column	£1,096.57
ON-100.050.0510	Obelisc N Column 10 x 50mm 5um 100A	Obelisc N	5 um	10.0 mm	50 mm	100 A	Column	£2,839.72
ON-100.100.0510	Obelisc N Column 10 x 100mm 5um 100A	Obelisc N	5 um	10.0 mm	100 mm	100 A	Column	£3,394.20
ON-100.150.0510	Obelisc N Column 10 x 150mm 5um 100A	Obelisc N	5 um	10.0 mm	150 mm	100 A	Column	£3,965.51
ON-100.250.0510	Obelisc N Column 10 x 250mm 5um 100A	Obelisc N	5 um	10.0 mm	250 mm	100 A	Column	£5,192.15
ON-220.050.0510	Obelisc N Column 22 x 50mm 5um 100A	Obelisc N	5 um	22.0 mm	50 mm	100 A	Column	£5,091.33
ON-220.100.0510	Obelisc N Column 22 x 100mm 5um 100A	Obelisc N	5 um	22.0 mm	100 mm	100 A	Column	£5,847.47
ON-220.150.0510	Obelisc N Column 22 x 150mm 5um 100A	Obelisc N	5 um	22.0 mm	150 mm	100 A	Column	£7,275.73
ON-220.250.0510	Obelisc N Column 22 x 250mm 5um 100A	Obelisc N	5 um	22.0 mm	250 mm	100 A	Column	£9,157.67

Features

Obelisc N features both positively and negatively charged groups, allowing it to interact with analytes that are either positively or negatively charged
The column supports multiple separation modes, including normal phase, HILIC, and ion exclusion
In HILIC mode, Obelisc N displays different selectivity compared to other HILIC or bare silica columns
The column is compatible with LC-MS, ELSD, and UV detection below 220 nm, using low concentration buffers
Adjustable selectivity in all modes based on organic content, pH, and buffer strength
Obelisc range also includes Obelisc R for reversed phase separations
Scalable from capillary to prep
Guard columns connect directly to columns and do not require any additional holders

Specifications

	Obelisc N
Mode	LiSC (Liquid Seperation Cell technology)
Phase Type	Mixed-mode
Particle Type	Fully Porous
Particle Size	5 µm
Pore Size	100 Å
Temperature Range	0 - 50°C
pH Limit	1.5 - 5.0
Recommended pH Operating Range	2.0 - 4.5
Pressure Limit	345 bar

Literature