Restek Ultra Aqueous C18 100Å Column Series | for aqueous-rich reversed-phase HPLC methods

Ultra Aqueous C18 100Å Series

Restek Ultra LC Columns Aqueous Header Picture

Restek Ultra Aqueous C18 100Å Columns – Reliable HPLC Performance for Aqueous Separations

Restek Ultra Aqueous C18 100Å Columns are high-performance reversed-phase HPLC columns designed for reliable separations across a broad range of analytes, including polar compounds. The specially engineered C18 stationary phase provides excellent retention, selectivity, and peak shape, even when using highly aqueous mobile phases.

Key Specifications: C18 stationary phase, 100 Å pore size, high surface coverage, and compatibility with aqueous-rich reversed-phase HPLC methods. Ultra Aqueous C18 columns are available in various dimensions and particle sizes to meet different analytical requirements.

Typical Applications: Ideal for pharmaceutical analysis, environmental testing, food and beverage analysis, clinical research, and general HPLC applications. Restek Ultra Aqueous C18 100Å Columns are particularly suitable for methods requiring enhanced retention of polar analytes and stable performance under highly aqueous conditions.

Choose Restek Ultra Aqueous C18 columns for robust, reproducible, and efficient HPLC separations with excellent chromatographic performance.

65 Products

Product Number	Description	Price	Specifications

RT-9178312

Ultra Aqueous C18 100Å 3µm, 2.1 x 100mm, ea.

EUR 681.00

Will be procured as soon as possible

Product Number: RT-9178312
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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Price:

EUR 681.00

Will be procured as soon as possible

RT-9178312-700

Ultra Aqueous C18 100Å 3µm, 2.1 x 100mm (Trident), ea.

EUR 713.00

Will be procured as soon as possible

Product Number: RT-9178312-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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Price:

EUR 713.00

Will be procured as soon as possible

RT-9178315

Ultra Aqueous C18 100Å 3µm, 4.6 x 100mm, ea.

EUR 681.00

Will be procured as soon as possible

Product Number: RT-9178315
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 681.00

Will be procured as soon as possible

RT-9178315-700 Ultra Aqueous C18 100Å 3µm, 4.6 x 100mm (Trident), ea. Price on request

Product Number: RT-9178315-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-917831E

Ultra Aqueous C18 100Å 3µm, 3.0 x 100mm, ea.

EUR 650.00

Will be procured as soon as possible

Product Number: RT-917831E
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 3.0 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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Price:

EUR 650.00

Will be procured as soon as possible

RT-9178332

Ultra Aqueous C18 100Å 3µm, 2.1 x 30mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178332
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 30 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178332-700 Ultra Aqueous C18 100Å 3µm, 2.1 x 30mm (Trident), ea. Price on request

Product Number: RT-9178332-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 30 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-9178335

Ultra Aqueous C18 100Å 3µm, 4.6 x 30mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178335
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 30 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178335-700 Ultra Aqueous C18 100Å 3µm, 4.6 x 30mm (Trident), ea. Price on request

Product Number: RT-9178335-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 30 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-917833E

Ultra Aqueous C18 100Å 3µm, 3.0 x 30mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-917833E
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 30 mm
Column ID: 3.0 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178352

Ultra Aqueous C18 100Å 3µm, 2.1 x 50mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178352
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 50 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178352-700 Ultra Aqueous C18 100Å 3µm, 2.1 x 50mm (Trident), ea. Price on request

Product Number: RT-9178352-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 50 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-9178355

Ultra Aqueous C18 100Å 3µm, 4.6 x 50mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178355
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 50 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178355-700 Ultra Aqueous C18 100Å 3µm, 4.6 x 50mm (Trident), ea. Price on request

Product Number: RT-9178355-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 50 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-917835E

Ultra Aqueous C18 100Å 3µm, 3.0 x 50mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-917835E
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 50 mm
Column ID: 3.0 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178362

Ultra Aqueous C18 100Å 3µm, 2.1 x 150mm, ea.

EUR 707.00

Will be procured as soon as possible

Product Number: RT-9178362
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 150 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 707.00

Will be procured as soon as possible

RT-9178362-700 Ultra Aqueous C18 100Å 3µm, 2.1 x 150mm (Trident), ea. Price on request

Product Number: RT-9178362-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 150 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

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RT-9178365

Ultra Aqueous C18 100Å 3µm, 4.6 x 150mm, ea.

EUR 721.00

Will be procured as soon as possible

Product Number: RT-9178365
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 150 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 721.00

Will be procured as soon as possible

RT-9178365-700

Ultra Aqueous C18 100Å 3µm, 4.6 x 150mm (Trident), ea.

EUR 737.00

Will be procured as soon as possible

Product Number: RT-9178365-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 150 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 737.00

Will be procured as soon as possible

RT-917836E

Ultra Aqueous C18 100Å 3µm, 3.0 x 150mm, ea.

EUR 761.00

Will be procured as soon as possible

Product Number: RT-917836E
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 3.0 µm
Pore Volume: 0.86 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 150 mm
Column ID: 3.0 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 761.00

Will be procured as soon as possible

RT-917850210

Ultra Aqueous C18 100Å 5µm, 4.0 x 10mm Guard Cartridge (Trident), pk.3

EUR 245.00

Will be procured as soon as possible

Product Number: RT-917850210
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 5.0 µm
Pore Volume: 0.88 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 10 mm
Column ID: 4.0 mm
Hardware Material: Stainless Steel
Hardware Type: Guard Cartridge
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Accessories: Guard Cartridge
Package Size: 3

Questions about the article To the product details

Price:

EUR 245.00

Will be procured as soon as possible

RT-917850212

Ultra Aqueous C18 100Å 5µm, 2.1 x 10mm Guard Cartridge (Trident), pk.3

EUR 245.00

Will be procured as soon as possible

Product Number: RT-917850212
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 5.0 µm
Pore Volume: 0.88 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 10 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Guard Cartridge
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Accessories: Guard Cartridge
Package Size: 3

Questions about the article To the product details

Price:

EUR 245.00

Will be procured as soon as possible

RT-9178512

Ultra Aqueous C18 100Å 5µm, 2.1 x 100mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178512
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 5.0 µm
Pore Volume: 0.88 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

RT-9178512-700 Ultra Aqueous C18 100Å 5µm, 2.1 x 100mm (Trident), ea. Price on request

Product Number: RT-9178512-700
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 5.0 µm
Pore Volume: 0.88 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 2.1 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

RT-9178515

Ultra Aqueous C18 100Å 5µm, 4.6 x 100mm, ea.

EUR 631.00

Will be procured as soon as possible

Product Number: RT-9178515
Manufacturer: Restek
Brand: Ultra
Selectivity: C18
Selectivity Manufacturer: Aqueous C18
Particle Size: 5.0 µm
Pore Volume: 0.88 mL/g
Pore Size: 100 Å
Carbon Load: 15.0 %
Endcapping: no
Column Length: 100 mm
Column ID: 4.6 mm
Hardware Material: Stainless Steel
Hardware Type: Analytical Column
Application: Reversed Phase
USP Code: L1
Temperature Range: 80 °C
pH Range: 2.5-8
Particle: Silica
Particle Shape: Spherical
Particle Type: Fully Porous
Surface Area: 300 m2/g
Bonding Type: polymeric
Package Size: 1

Questions about the article To the product details

Price:

EUR 631.00

Will be procured as soon as possible

Restek Ultra Aqueous C18 100Å Columns – Reliable HPLC Performance for Aqueous Separations

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