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 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.
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 |
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.
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 |
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 |
Columns:
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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 |
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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