SiELC Obelisc R HPLC Columns

SiELC Obelisc R is a mixed-mode column based on LiSC (Liquid Separation Cell technology) and is designed for use in traditional reversed-phase applications. 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 R has a stationary phase with cationic groups close to the silica surface separated from anionic groups by a hydrophobic chain. Due to the presence of ionic groups and a long hydrophobic chain, Obelisc R offers additional retention and tuning that is not available with traditional reversed-phase columns. Typical mobile phases used are based acetonitrile, water, and the mass spectrometry compatible buffers ammonium formate (pH 3) and ammonium acetate (pH 5).

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Part Number	Short Description	Phase	Particle Size	ID	Length	Pore Size	Type	Price
OR-46.250.1010	Obelisc R Column 4.6 x 250mm 10um 100A	Obelisc R	10 um	4.6 mm	250 mm	100 A	Column	£1,359.99
OR-05.250.0510	Obelisc R Column 0.5 x 250mm 5um 100A	Obelisc R	5 um	0.5 mm	250 mm	100 A	Column	£1,409.00
OR-05.150.0510	Obelisc R Column 0.5 x 150mm 5um 100A	Obelisc R	5 um	0.5 mm	150 mm	100 A	Column	£1,384.48
OR-46.250.0510	Obelisc R Column 4.6 x 250mm 5um 100A	Obelisc R	5 um	4.6 mm	250 mm	100 A	Column	£1,280.36
OR-05.100.0510	Obelisc R Column 0.5 x 100mm 5um 100A	Obelisc R	5 um	0.5 mm	100 mm	100 A	Column	£1,372.24
OR-46.150.0510	Obelisc R Column 4.6 x 150mm 5um 100A	Obelisc R	5 um	4.6 mm	150 mm	100 A	Column	£1,170.08
OR-46.150.1010	Obelisc R Column 4.6 x 150mm 10um 100A	Obelisc R	10 um	4.6 mm	150 mm	100 A	Column	£1,170.08
OR-32.250.0510	Obelisc R Column 3.2 x 250mm 5um 100A	Obelisc R	5 um	3.2 mm	250 mm	100 A	Column	£1,237.47
OR-10.250.0510	Obelisc R Column 1 x 250mm 5um 100A	Obelisc R	5 um	1.0 mm	250 mm	100 A	Column	£1,200.72
OR-21.250.0510	Obelisc R Column 2.1 x 250mm 5um 100A	Obelisc R	5 um	2.1 mm	250 mm	100 A	Column	£1,200.72
OR-32.250.1010	Obelisc R Column 3.2 x 250mm 10um 100A	Obelisc R	10 um	3.2 mm	250 mm	100 A	Column	£1,188.46
OR-46.100.0510	Obelisc R Column 4.6 x 100mm 5um 100A	Obelisc R	5 um	4.6 mm	100 mm	100 A	Column	£1,145.58
OR-46.100.1010	Obelisc R Column 4.6 x 100mm 10um 100A	Obelisc R	10 um	4.6 mm	100 mm	100 A	Column	£1,145.58
OR-32.150.0510	Obelisc R Column 3.2 x 150mm 5um 100A	Obelisc R	5 um	3.2 mm	150 mm	100 A	Column	£1,176.20
OR-10.150.0510	Obelisc R Column 1 x 150mm 5um 100A	Obelisc R	5 um	1.0 mm	150 mm	100 A	Column	£1,151.71
OR-21.150.0510	Obelisc R Column 2.1 x 150mm 5um 100A	Obelisc R	5 um	2.1 mm	150 mm	100 A	Column	£1,151.71
OR-32.100.0510	Obelisc R Column 3.2 x 100mm 5um 100A	Obelisc R	5 um	3.2 mm	100 mm	100 A	Column	£1,149.26
OR-32.150.1010	Obelisc R Column 3.2 x 150mm 10um 100A	Obelisc R	10 um	3.2 mm	150 mm	100 A	Column	£1,133.34
OR-10.100.0510	Obelisc R Column 1 x 100mm 5um 100A	Obelisc R	5 um	1.0 mm	100 mm	100 A	Column	£1,133.34
OR-21.100.0510	Obelisc R Column 2.1 x 100mm 5um 100A	Obelisc R	5 um	2.1 mm	100 mm	100 A	Column	£1,133.34
OR-32.100.1010	Obelisc R Column 3.2 x 100mm 10um 100A	Obelisc R	10 um	3.2 mm	100 mm	100 A	Column	£1,102.70
OR-10.050.0510	Obelisc R Column 1 x 50mm 5um 100A	Obelisc R	5 um	1.0 mm	50 mm	100 A	Column	£1,096.57
OR-21.050.0510	Obelisc R Column 2.1 x 50mm 5um 100A	Obelisc R	5 um	2.1 mm	50 mm	100 A	Column	£1,096.57
OR-32.050.0510	Obelisc R Column 3.2 x 50mm 5um 100A	Obelisc R	5 um	3.2 mm	50 mm	100 A	Column	£1,096.57
OR-46.050.0510	Obelisc R Column 4.6 x 50mm 5um 100A	Obelisc R	5 um	4.6 mm	50 mm	100 A	Column	£1,035.31
OR-46.050.1010	Obelisc R Column 4.6 x 50mm 10um 100A	Obelisc R	10 um	4.6 mm	50 mm	100 A	Column	£1,035.31
OR-32.050.1010	Obelisc R Column 3.2 x 50mm 10um 100A	Obelisc R	10 um	3.2 mm	50 mm	100 A	Column	£1,047.56
OR-10.025.0510	Obelisc R Column 1 x 25mm 5um 100A	Obelisc R	5 um	1.0 mm	25 mm	100 A	Column	£1,005.31
OR-21.025.0510	Obelisc R Column 2.1 x 25mm 5um 100A	Obelisc R	5 um	2.1 mm	25 mm	100 A	Column	£1,005.31
OR-32.025.0510	Obelisc R Column 3.2 x 25mm 5um 100A	Obelisc R	5 um	3.2 mm	25 mm	100 A	Column	£1,005.31
OR-10.010.0510	Obelisc R Column 1 x 10mm 5um 100A	Obelisc R	5 um	1.0 mm	10 mm	100 A	Column	£913.39
OR-21.010.0510	Obelisc R Column 2.1 x 10mm 5um 100A	Obelisc R	5 um	2.1 mm	10 mm	100 A	Column	£913.39
OR-32.010.0510	Obelisc R Column 3.2 x 10mm 5um 100A	Obelisc R	5 um	3.2 mm	10 mm	100 A	Column	£913.39
OR-46.010.0510	Obelisc R Column 4.6 x 10mm 5um 100A	Obelisc R	5 um	4.6 mm	10 mm	100 A	Column	£851.53
OR-10.G.0510	Obelisc R Guard Column 1 x 10mm 5um 100A, 2pk	Obelisc R	5 um	1.0 mm	10 mm	100 A	Guard	£416.57
OR-21.G.0510	Obelisc R Guard Column 2.1 x 10mm 5um 100A, 2pk	Obelisc R	5 um	2.1 mm	10 mm	100 A	Guard	£416.57
OR-32.G.0510	Obelisc R Guard Column 3.2 x 10mm 5um 100A, 2pk	Obelisc R	5 um	3.2 mm	10 mm	100 A	Guard	£416.57
OR-46.G.0510	Obelisc R Guard Column 4.6 x 10mm 5um 100A, 2pk	Obelisc R	5 um	4.6 mm	10 mm	100 A	Guard	£416.57
OR-100.050.0510	Obelisc R Column 10 x 50mm 5um 100A	Obelisc R	5 um	10.0 mm	50 mm	100 A	Column	£2,839.72
OR-100.050.1010	Obelisc R Column 10 x 50mm 10um 100A	Obelisc R	10 um	10.0 mm	50 mm	100 A	Column	£2,638.07
OR-100.100.0510	Obelisc R Column 10 x 100mm 5um 100A	Obelisc R	5 um	10.0 mm	100 mm	100 A	Column	£3,394.20
OR-100.100.1010	Obelisc R Column 10 x 100mm 10um 100A	Obelisc R	10 um	10.0 mm	100 mm	100 A	Column	£3,209.37
OR-100.150.0510	Obelisc R Column 10 x 150mm 5um 100A	Obelisc R	5 um	10.0 mm	150 mm	100 A	Column	£3,965.51
OR-100.150.1010	Obelisc R Column 10 x 150mm 10um 100A	Obelisc R	10 um	10.0 mm	150 mm	100 A	Column	£3,780.69
OR-100.250.0510	Obelisc R Column 10 x 250mm 5um 100A	Obelisc R	5 um	10.0 mm	250 mm	100 A	Column	£5,192.15
OR-100.250.1010	Obelisc R Column 10 x 250mm 10um 100A	Obelisc R	10 um	10.0 mm	250 mm	100 A	Column	£4,721.64
OR-220.050.0510	Obelisc R Column 22 x 50mm 5um 100A	Obelisc R	5 um	22.0 mm	50 mm	100 A	Column	£5,091.33
OR-220.050.1010	Obelisc R Column 22 x 50mm 10um 100A	Obelisc R	10 um	22.0 mm	50 mm	100 A	Column	£4,822.46
OR-220.100.0510	Obelisc R Column 22 x 100mm 5um 100A	Obelisc R	5 um	22.0 mm	100 mm	100 A	Column	£5,847.47
OR-220.100.1010	Obelisc R Column 22 x 100mm 10um 100A	Obelisc R	10 um	22.0 mm	100 mm	100 A	Column	£5,477.79
OR-220.150.0510	Obelisc R Column 22 x 150mm 5um 100A	Obelisc R	5 um	22.0 mm	150 mm	100 A	Column	£7,275.73
OR-220.150.1010	Obelisc R Column 22 x 150mm 10um 100A	Obelisc R	10 um	22.0 mm	150 mm	100 A	Column	£6,889.25
OR-220.250.0510	Obelisc R Column 22 x 250mm 5um 100A	Obelisc R	5 um	22.0 mm	250 mm	100 A	Column	£9,157.67
OR-220.250.1010	Obelisc R Column 22 x 250mm 10um 100A	Obelisc R	10 um	22.0 mm	250 mm	100 A	Column	£8,788.00

Features

Due to the presence of ionic groups and a long hydrophobic chain, Obelisc R provides additional retention and tuning that traditional reversed-phase columns cannot offer
Multiple separation modes available including reversed phase, normal phase, and ion exclusion
Compatible with LC-MS, ELSD, and low UV (<220 nm) with low concentration buffers
Adjustable selectivity in all modes based on organic content, pH, and buffer strength
Obelisc range also includes Obelisc N with normal phase characteristics
Scalable from capillary to prep
Guard columns connect directly to columns and do not require any additional holders

Specifications

	Obelisc R
Mode	LiSC (Liquid Seperation Cell technology)
Phase Type	Mixed-mode
Particle Type	Fully Porous
Particle Size	5 µm, 10 µm
Pore Size	100 Å
Temperature Range	0 - 50°C
pH Limit	1.5 - 7.0
Recommended pH Operating Range	2.0 - 6.5
Pressure Limit	345 bar

Literature