COSMOSIL C18-PAQ HPLC Columns
The COSMOSIL C18-PAQ is a new member of our C18 column family which already includes the monomeric type MS-II and the polymeric type AR-II. This new column maintains stable retention time even in 100% aqueous mobile phases. The new polymeric linking style gives this column a strong acidic resistance so that it is compatible with mobile phases of acidic pH that can permanently damage conventional octadecyl stationary phases. This type is especially good for separation of hydrophilic compounds.
Main Characteristics
COSMOSIL C18-PAQ | |
Base Material | Silica Gel |
Particle Sizes Available | 5, 15um |
Pore Size | 120Å |
Surface Area | 330m2/g |
pH Range | 2.0 - 7.5 |
USP Code | L1 |
Carbon Load | 11% |
Stable Performance under 100% Aqueous Conditions
The figure shows the change of retention time for thymine with 100% aqueous mobile phase (20 mmol/l phosphate buffer pH7). The sample was analyzed 4 times. Flow of mobile phase was then stopped for 1 hour. The sample was analyzed under the same condition again after 1 hour. The conventional C18 column showed change of retention time, but COSMOSIL C18-PAQ maintained stable retention time.
Condition | |
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Column Size | 4.6 mm I.D. x 250 mm |
Mobile Phase | 20 mmol/l Phosphoric Acid |
Flow rate | 1.0ml/min |
Temperature | 30°C |
Detection | UV 210 nm 0.16AUFS |
Sample |
|
Condition | |
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Column Size | 4.6 mm I.D. x 250 mm |
Mobile Phase | 20 mmol/l Phosphoric Acid |
Flow Rate | 1.0ml/min |
Temperature | 30°C |
Detection | UV 210 nm 0.16AUFS |
Sample |
|
Condition | |
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Column Size | 4.6 mm I.D. x 150 mm |
Mobile Phase | 20 mmol/l Phosphate Buffer (pH7) |
Flow Rate | 1.0 ml/min |
Temperature | 30°C |
Detection | UV 254 nm 0.16AUFS |
Sample |
|
Condition | |
---|---|
Column Size | 4.6 mm I.D. x 250 mm |
Mobile Phase | 20 mmol/l Phosphate Buffer (pH7) |
Flow Rate | 1.0 ml/min |
Temperature | 30°C |
Detection | UV 260 nm 0.16 AUFS |
Sample |
|
Condition | |
---|---|
Column Size | 4.6 mm I.D. x 250 mm mm |
Mobile Phase | 20 mmol/l Phosphoric Acid |
Flow Rate | 1.0 ml/min |
Temperature | 30°C |
Detection | UV 245 nm 0.16 AUFS |
Sample | Ascorbic Acid (Vitamin C) 0.1 µg |
|
Condition | |
---|---|
Column Size | 4.6 mm I.D. x 150 mm |
Mobile Phase | Acetonitrile : Methanol : Water = 8 : 4 : 88 |
Flow Rate | 1.0 ml/min |
Temperature | 30°C |
Detection | UV 210 nm 0.064 AUFS |
Sample | 10.5 MPa |
Ordering Information
Particle Size | Description | Column Dimensions | Part Number |
5um | COSMOSIL C18-PAQ Column | 1.0 x 50mm | 05792-61 |
5um | COSMOSIL C18-PAQ Column | 1.0 x 150mm | 05793-51 |
5um | COSMOSIL C18-PAQ Column | 2.0 x 30mm | 05878-51 |
5um | COSMOSIL C18-PAQ Column | 2.0 x 50mm | 05794-41 |
5um | COSMOSIL C18-PAQ Column | 2.0 x 100mm | 05470-71 |
5um | COSMOSIL C18-PAQ Column | 2.0 x 150mm | 34449-71 |
5um | COSMOSIL C18-PAQ Column | 2.0 x 250mm | 05795-31 |
5um | COSMOSIL C18-PAQ Column | 3.0 x 100mm | 05796-21 |
5um | COSMOSIL C18-PAQ Column | 3.0 x 150mm | 05797-11 |
5um | COSMOSIL C18-PAQ Column | 3.0 x 250mm | 05798-01 |
5um | COSMOSIL C18-PAQ Column | 4.6 x 30mm | 05879-41 |
5um | COSMOSIL C18-PAQ Column | 4.6 x 50mm | 34451-21 |
5um | COSMOSIL C18-PAQ Column | 4.6 x 100mm | 05799-91 |
5um | COSMOSIL C18-PAQ Column | 4.6 x 150mm | 02486-71 |
5um | COSMOSIL C18-PAQ Column | 4.6 x 250mm | 02485-81 |
5um | COSMOSIL C18-PAQ Column | 6.0 x 150mm | 34419-61 |
5um | COSMOSIL C18-PAQ Column | 6.0 x 250mm | 05800-41 |
5um | COSMOSIL C18-PAQ Column | 10.0 x 50mm | 05801-31 |
5um | COSMOSIL C18-PAQ Column | 10.0 x 150mm | 34466-41 |
5um | COSMOSIL C18-PAQ Column | 10.0 x 250mm | 34376-21 |
5um | COSMOSIL C18-PAQ Column | 20.0 x 150mm | 34476-11 |
5um | COSMOSIL C18-PAQ Column | 20.0 x 250mm | 34373-51 |
5um | COSMOSIL C18-PAQ Column | 28.0 x 250mm |