Ultra Aqueous C18 Columns (USP L1)

Stationary Phase Category: modified C18 (L1)
Ligand Type: proprietary polar modified and functionally bonded C18
Particle: 3 µm or 5 µm, spherical
Pore Size: 100 Å
Carbon Load: 15%
End-Cap: no
Surface Area: 300 m²/g
pH Range: 2.5 to 8
Maximum Temperature: 80 °C

Ordering Notes

Certificates of analysis for new Restek LC columns are now provided electronically. To view and download, visit www.restek.com/documentation then enter your cat.# and serial #.

Documentation and Instructions Sheets

Instruction Sheet: Restek Liquid Chromatography (LC) Columns - Usage & Care

Ultra Aqueous C18 Columns (USP L1)

Chromatograms

Additional Product Details

Product Options

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Catalog #					Clear All
9178312	2.1 mm	100 mm	3 µm	ea.	Select Deselect
Catalog # 9178312 ID 2.1 mm Length 100 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18 Often Purchased with: Ultra Aqueous C18, 5 µm, 10 x 2.1 mm Guard Cartridge, 3-pk. LC Column Protection System, Trident Level 2, Cartridge Holder Only, ea. Revive ILSP holder and Revive ILSP Pesticides cartridge (5 x 2.1 mm)
9178315	4.6 mm	100 mm	3 µm	ea.	Select Deselect
Catalog # 9178315 ID 4.6 mm Length 100 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917831E	3.0 mm	100 mm	3 µm	ea.	Select Deselect
Catalog # 917831E ID 3.0 mm Length 100 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178332	2.1 mm	30 mm	3 µm	ea.	Select Deselect
Catalog # 9178332 ID 2.1 mm Length 30 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178335	4.6 mm	30 mm	3 µm	ea.	Select Deselect
Catalog # 9178335 ID 4.6 mm Length 30 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917833E	3.0 mm	30 mm	3 µm	ea.	Select Deselect
Catalog # 917833E ID 3.0 mm Length 30 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178352	2.1 mm	50 mm	3 µm	ea.	Select Deselect
Catalog # 9178352 ID 2.1 mm Length 50 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178355	4.6 mm	50 mm	3 µm	ea.	Select Deselect
Catalog # 9178355 ID 4.6 mm Length 50 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917835E	3.0 mm	50 mm	3 µm	ea.	Select Deselect
Catalog # 917835E ID 3.0 mm Length 50 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178362	2.1 mm	150 mm	3 µm	ea.	Select Deselect
Catalog # 9178362 ID 2.1 mm Length 150 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178365	4.6 mm	150 mm	3 µm	ea.	Select Deselect
Catalog # 9178365 ID 4.6 mm Length 150 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917836E	3.0 mm	150 mm	3 µm	ea.	Select Deselect
Catalog # 917836E ID 3.0 mm Length 150 mm Particle Size 3 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178512	2.1 mm	100 mm	5 µm	ea.	Select Deselect
Catalog # 9178512 ID 2.1 mm Length 100 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178515	4.6 mm	100 mm	5 µm	ea.	Select Deselect
Catalog # 9178515 ID 4.6 mm Length 100 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917851E	3.0 mm	100 mm	5 µm	ea.	Select Deselect
Catalog # 917851E ID 3.0 mm Length 100 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178522	2.1 mm	200 mm	5 µm	ea.	Select Deselect
Catalog # 9178522 ID 2.1 mm Length 200 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178525	4.6 mm	200 mm	5 µm	ea.	Select Deselect
Catalog # 9178525 ID 4.6 mm Length 200 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917852E	3.0 mm	200 mm	5 µm	ea.	Select Deselect
Catalog # 917852E ID 3.0 mm Length 200 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178532	2.1 mm	30 mm	5 µm	ea.	Select Deselect
Catalog # 9178532 ID 2.1 mm Length 30 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178535	4.6 mm	30 mm	5 µm	ea.	Select Deselect
Catalog # 9178535 ID 4.6 mm Length 30 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917853E	3.0 mm	30 mm	5 µm	ea.	Select Deselect
Catalog # 917853E ID 3.0 mm Length 30 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178552	2.1 mm	50 mm	5 µm	ea.	Select Deselect
Catalog # 9178552 ID 2.1 mm Length 50 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178555	4.6 mm	50 mm	5 µm	ea.	Select Deselect
Catalog # 9178555 ID 4.6 mm Length 50 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917855E	3.0 mm	50 mm	5 µm	ea.	Select Deselect
Catalog # 917855E ID 3.0 mm Length 50 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178562	2.1 mm	150 mm	5 µm	ea.	Select Deselect
Catalog # 9178562 ID 2.1 mm Length 150 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178565	4.6 mm	150 mm	5 µm	ea.	Select Deselect
Catalog # 9178565 ID 4.6 mm Length 150 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917856E	3.0 mm	150 mm	5 µm	ea.	Select Deselect
Catalog # 917856E ID 3.0 mm Length 150 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178572	2.1 mm	250 mm	5 µm	ea.	Select Deselect
Catalog # 9178572 ID 2.1 mm Length 250 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
9178575	4.6 mm	250 mm	5 µm	ea.	Select Deselect
Catalog # 9178575 ID 4.6 mm Length 250 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18
917857E	3.0 mm	250 mm	5 µm	ea.	Select Deselect
Catalog # 917857E ID 3.0 mm Length 250 mm Particle Size 5 µm Units ea. Pore Size 100 Å Product Name Ultra Aqueous C18

The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications.

The Restek Aqueous C18 is a rugged, reversed-phase column with a well-balanced retention profile. It can effectively retain more types of solutes than a conventional C18 and is ideal for multicomponent LC-MS analyses. The general-purpose Aqueous C18 boasts high reproducibility and compatibility with many mobile phase conditions—even 100% aqueous. And when used with a gradient, it eliminates the all-too-common issue of multiple compounds eluting near the column void time.

Similar Phases

YMC: YMC ODS-Aq

Phenomenex: AQUA C18

Thermo Fisher Scientific: Aquasil C18, Hypersil Gold AQ

Featured Restek Products

Ultra Aqueous C18 Columns (USP L1)

Catalog #

Catalog # 9178312

Catalog # 9178315

Catalog # 917831E

Catalog # 9178332

Catalog # 9178335

Catalog # 917833E

Catalog # 9178352

Catalog # 9178355

Catalog # 917835E

Catalog # 9178362

Catalog # 9178365

Catalog # 917836E

Catalog # 9178512

Catalog # 9178515

Catalog # 917851E

Catalog # 9178522

Catalog # 9178525

Catalog # 917852E

Catalog # 9178532

Catalog # 9178535

Catalog # 917853E

Catalog # 9178552

Catalog # 9178555

Catalog # 917855E

Catalog # 9178562

Catalog # 9178565

Catalog # 917856E

Catalog # 9178572

Catalog # 9178575

Catalog # 917857E

Chromatograms

Additional Product Details