Luna Omega PS C18 HPLC Columns
Improve Peak Shape for Bases Without the Headache
Luna Omega PS C18 is a unique mixed interaction stationary phase that provides incredibly useful polar and non-polar retention. The surface of the PS C18 contains a positive charge which aids in the retention of acidic compounds and provides better peak shape for bases through ionic interactions, while the C18 ligand promotes general reversed phase retention. This mixed-mode selectivity allows for greater separation between compounds with varying functional groups.
- Compatible with All Analytical HPLC/UHPLC Systems*
- Fully Scalable Particle Size UHPLC HPLC Preparative
- Charged Surface C18 that is 100 % Aqueous Stable
Scalable Particle Sizes
*Luna Omega analytical columns are compatible with all LC system with standard LC column end fittings threaded in 10-32. Please contact us at Phenomenex.com/chat for any questions and information about fitting compatibility and any other column internal diameters then analytical.
Carbon Load 11.0 |
Surface Area (m²/g) 260 |
Particle Size 1.6, 3, 5 |
Recommended Use Positive surface C18 phase for HPLC and UHPLC separations of hydrophobic/basic compounds |
A C18 With a Positive Twist
Luna Omega PS C18 has been fine tuned and manufactured by Phenomenex to provide a mixed selectivity that is highly useful for method development involving either combinations of polar and nonpolar compounds, or just one single compound class with small changes in functional groups.
Enhanced Selectivity and Polar Retention
MMA and Succinic Acid
Columns:
Luna Omega 1.6 μm PS C18
ACE Excel 2 μm C18-AR |
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Dimension:
50 x 2.1 mm
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Mobile Phase:
A: Water with 0.1 % Formic Acid B: Acetonitrile with 0.1 % Formic Acid |
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Gradient:
Time (min)
0
5 5.1 7 | % B
0 50 0 0 |
Flow Rate:
0.5 mL/min |
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Temperature:
22 °C |
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Detection:
MS/MS (SCIEX® API 4000™) |
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Samples:
1. Succinic acid 2. MMA |
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Think Outside the Traditional C18 Selectivity
Acids/Bases/Neutrals
Columns:
Luna Omega 1.6 μm PS C18
ACQUITY BEH 1.7 μm C18 |
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Dimension:
50 x 2.1 mm
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Mobile Phase:
A: Water with 0.1 % Formic Acid B: Acetonitrile with 0.1 % Formic Acid |
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Gradient:
Time (min)
0
5 5.01 8 | % B
5 95 5 5 |
Flow Rate:
0.4 mL/min |
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Temperature:
22 °C |
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Detection:
UV @ 254 nm |
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Samples:
1. Uracil 2. Pindolol 3. Chlorpheniramine 4. Nortriptyline 5. 3-Methyl-4-nitrobenzoic acid 6. 5-Methyl salicylaldehyde 7. Hexanophenone |
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Better Peak Shape for Bases
Acids/Bases/Neutrals
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Columns:
 Luna Omega 1.6 μm PS C18 Thermo Scientific® Hypersil GOLD 1.9 μm C18 Agilent® ZORBAX 1.8 µm SB-C18 |
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Dimension:
50 x 2.1 mm
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Mobile Phase:
A: Water with 0.1% Formic Acid
B: Acetonitrile with 0.1% Formic Acid |
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Gradient:
Time (min)
0
3 3.1 5 |
% B
3
80 3 3 |
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Flow Rate:
0.5 mL/min
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Temperature:
22 °C
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Detection:
MS/MS (SCIEX API 4000)
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Samples:
Insulin
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