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Ultra HPLC Prep Columns

By Restek
Ultra HPLC Prep Columns

Restek's broadest selection of stationary phases, including unique phases. High-density bondings for maximum retention. High-purity, Type-B silica gives excellent peak shapes for a wide range of compounds.

Ultra Aqueous C18 HPLC Prep Columns

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.

  • Stationary Phase Category: modified C18 (L1)
  • Ligand Type: proprietary polar modified and functionally bonded C18
  • Particle: 5µm, 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
           
Cat.No. Name Size EA   Certified
226-9178557 Ultra Aqueous C18 5μm Column 50mm x 10mm $1067.00
1/EA
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226-9178558 Ultra Aqueous C18 5μm Column 50mm x 21.2mm $2123.00
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226-9178559 Ultra Aqueous C18 5μm Column 50mm x 30mm $3689.00
1/EA
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226-9178517 Ultra Aqueous C18 5μm Column 100mm x 10mm $1348.00
1/EA
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226-9178518 Ultra Aqueous C18 5μm Column 100mm x 21.2mm $2607.00
1/EA
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226-9178519 Ultra Aqueous C18 5μm Column 100mm x 30mm $4356.00
1/EA
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226-9178567 Ultra Aqueous C18 5μm Column 150mm x 10mm $1508.00
1/EA
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226-9178568 Ultra Aqueous C18 5μm Column 150mm x 21.2mm $3347.00
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226-9178569 Ultra Aqueous C18 5μm Column 150mm x 30mm $5535.00
1/EA
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226-9178577 Ultra Aqueous C18 5μm Column 250mm x 10mm $1725.00
1/EA
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226-9178578 Ultra Aqueous C18 5μm Column 250mm x 21.2mm $4341.00
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226-9178579 Ultra Aqueous C18 5μm Column 250mm x 30mm $8971.00
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Ultra IBD HPLC Prep Columns

The Restek IBD is a polar-embedded column that acts as a strong hydrogen bonder and may be the most versatile column available today. With a unique polar group, this column is very retentive and selective for acids. It also provides symmetrical peak shape for strong bases. Restek’s IBD is compatible with 100% aqueous mobile phases and can be used under reversed-phase or HILIC conditions to retain very polar, ionic compounds in highly organic mobile phases.

  • Stationary Phase Category: polar-embedded alkyl (L68)
  • Ligand Type: proprietary polar functional embedded alkyl
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 12%
  • End-Cap: no
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9175557 Ultra IBD 5μm Column 50mm x 10mm $1067.00
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226-9175558 Ultra IBD 5μm Column 50mm x 21.2mm $2123.00
1/EA
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226-9175559 Ultra IBD 5μm Column 50mm x 30mm $3689.00
1/EA
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226-9175517 Ultra IBD 5μm Column 100mm x 10mm $1348.00
1/EA
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226-9175518 Ultra IBD 5μm Column 100mm x 21.2mm $2607.00
1/EA
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226-9175519 Ultra IBD 5μm Column 100mm x 30mm $4356.00
1/EA
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226-9175567 Ultra IBD 5μm Column 150mm x 10mm $1508.00
1/EA
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226-9175568 Ultra IBD 5μm Column 150mm x 21.2mm $3347.00
1/EA
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226-9175569 Ultra IBD 5μm Column 150mm x 30mm $5535.00
1/EA
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226-9175577 Ultra IBD 5μm Column 250mm x 10mm $1725.00
1/EA
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226-9175578 Ultra IBD 5μm Column 250mm x 21.2mm $4341.00
1/EA
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226-9175579 Ultra IBD 5μm Column 250mm x 30mm $8971.00
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Ultra Biphenyl HPLC Prep Columns

  • Stationary Phase Category: phenyl (L11)
  • Ligand Type: unique Biphenyl
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 15%
  • End-Cap: yes
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9109557 Ultra Biphenyl 5µm Column 50mm x 10mm $1485.00
1/EA
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226-9109558 Ultra Biphenyl 5µm Column 50mm x 21.2mm $3058.00
1/EA
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226-9109559 Ultra Biphenyl 5µm Column 50mm x 30mm $5639.00
1/EA
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226-9109517 Ultra Biphenyl 5µm Column 100mm x 10mm $1645.00
1/EA
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226-9109518 Ultra Biphenyl 5µm Column 100mm x 21.2mm $3893.00
1/EA
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226-9109519 Ultra Biphenyl 5µm Column 100mm x 30mm $6394.00
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226-9109567 Ultra Biphenyl 5µm Column 150mm x 10mm $1793.00
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226-9109569 Ultra Biphenyl 5µm Column 150mm x 30mm $8139.00
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226-9109577 Ultra Biphenyl 5µm Column 250mm x 10mm $2040.00
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226-9109579 Ultra Biphenyl 5µm Column 250mm x 30mm $10673.00
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Ultra PFP Propyl HPLC Prep Columns

The Restek PFP Propyl is a great choice for the retention and selectivity of charged bases, electronegative compounds, and amine-containing compounds. Unlike a conventional cyano column, the Restek PFP Propyl is much more amenable to LC-MS because it is more reliable and efficient with acidic mobile phases. This versatile column is also compatible with highly aqueous mobile phases and HILIC separations.

  • Stationary Phase Category: fluorophenyl propyl (L43)
  • Ligand Type: pentafluorophenyl propyl
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 11%
  • End-Cap: yes
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9179557 Ultra PFP Propyl 5µm Column 50mm x 10mm $1544.00
1/EA
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226-9179558 Ultra PFP Propyl 5µm Column 50mm x 21.2mm $3183.00
1/EA
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226-9179559 Ultra PFP Propyl 5µm Column 50mm x 30mm $5863.00
1/EA
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226-9179517 Ultra PFP Propyl 5µm Column 100mm x 10mm $1711.00
1/EA
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226-9179519 Ultra PFP Propyl 5µm Column 100mm x 30mm $6394.00
1/EA
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226-9179567 Ultra PFP Propyl 5µm Column 150mm x 10mm $1866.00
1/EA
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226-9179568 Ultra PFP Propyl 5µm Column 150mm x 21.2mm $4807.00
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226-9179569 Ultra PFP Propyl 5µm Column 150mm x 30mm $8464.00
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226-9179577 Ultra PFP Propyl 5µm Column 250mm x 10mm $2000.00
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226-9179578 Ultra PFP Propyl 5µm Column 250mm x 21.2mm $5869.00
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226-9179579 Ultra PFP Propyl 5µm Column 250mm x 30mm $11101.00
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Ultra C18 HPLC Prep Columns

The general-purpose Restek C18 is a conventional monomeric octadecylsilane column suitable for analyses of a wide range of compounds from acidic through slightly basic.

  • Stationary Phase Category: C18, octadecylsilane (L1)
  • Ligand Type: monomeric C18
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 20%
  • End-Cap: yes
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9174557 Ultra C18 5µm Column 50mm x 10mm $1067.00
1/EA
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226-9174558 Ultra C18 5µm Column 50mm x 21.2mm $2123.00
1/EA
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226-9174559 Ultra C18 5µm Column 50mm x 30mm $3689.00
1/EA
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226-9174517 Ultra C18 5µm Column 100mm x 10mm $1348.00
1/EA
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226-9174518 Ultra C18 5µm Column 100mm x 21.2mm $2607.00
1/EA
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226-9174519 Ultra C18 5µm Column 100mm x 30mm $4356.00
1/EA
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226-9174567 Ultra C18 5µm Column 150mm x 10mm $1508.00
1/EA
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226-9174568 Ultra C18 5µm Column 150mm x 21.2mm $3347.00
1/EA
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226-9174569 Ultra C18 5µm Column 150mm x 30mm $5535.00
1/EA
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226-9174577 Ultra C18 5µm Column 250mm x 10mm $1725.00
1/EA
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226-9174578 Ultra C18 5µm Column 250mm x 21.2mm $4341.00
1/EA
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226-9174579 Ultra C18 5µm Column 250mm x 30mm $8971.00
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Ultra C8 HPLC Prep Columns

Our C8 is a conventional monomeric octylsilane column offering a shorter alkyl chain to provide less hydrophobic retention and improved basic peak shape over a traditional C18 phase. Like our C18, this general-purpose Restek C8 is suitable for a wide range of compounds from acidic through slightly basic.

  • Stationary Phase Category: C8, octylsilane (L7)
  • Ligand Type: monomeric C8
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 12%
  • End-Cap: yes
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9103557 Ultra C8 5µm Column 50mm x 10mm $1067.00
1/EA
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226-9103558 Ultra C8 5µm Column 50mm x 21.2mm $2123.00
1/EA
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226-9103559 Ultra C8 5µm Column 50mm x 30mm $3689.00
1/EA
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226-9103517 Ultra C8 5µm Column 100mm x 10mm $1348.00
1/EA
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226-9103518 Ultra C8 5µm Column 100mm x 21.2mm $2607.00
1/EA
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226-9103519 Ultra C8 5µm Column 100mm x 30mm $4356.00
1/EA
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226-9103567 Ultra C8 5µm Column 150mm x 10mm $1508.00
1/EA
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226-9103568 Ultra C8 5µm Column 150mm x 21.2mm $3347.00
1/EA
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226-9103569 Ultra C8 5µm Column 150mm x 30mm $5535.00
1/EA
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226-9103577 Ultra C8 5µm Column 250mm x 10mm $1725.00
1/EA
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226-9103578 Ultra C8 5µm Column 250mm x 21.2mm $4341.00
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226-9103579 Ultra C8 5µm Column 250mm x 30mm $8971.00
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Ultra Cyano HPLC Prep Columns

The Restek Cyano is a traditional monomeric cyanopropylsilane that is recommended for assays where alternate selectivity, or confirmation, to a C18 or C8 column is desired. It can be used in normal-phase, reversed-phase (best with mobile phase pH between 5 and 7), and HILIC modes. It is an excellent choice for the analysis of protonated bases.

  • Stationary Phase Category: cyano (L10)
  • Ligand Type: cyanopropylsilane
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: 8%
  • End-Cap: yes
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9106557 Ultra Cyano 5µm Column 50mm x 10mm $1067.00
1/EA
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226-9106558 Ultra Cyano 5µm Column 50mm x 21.2mm $2123.00
1/EA
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226-9106559 Ultra Cyano 5µm Column 50mm x 30mm $3689.00
1/EA
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226-9106517 Ultra Cyano 5µm Column 100mm x 10mm $1348.00
1/EA
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226-9106518 Ultra Cyano 5µm Column 100mm x 21.2mm $2607.00
1/EA
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226-9106519 Ultra Cyano 5µm Column 100mm x 30mm $4356.00
1/EA
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226-9106567 Ultra Cyano 5µm Column 150mm x 10mm $1508.00
1/EA
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226-9106568 Ultra Cyano 5µm Column 150mm x 21.2mm $3347.00
1/EA
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226-9106569 Ultra Cyano 5µm Column 150mm x 30mm $5535.00
1/EA
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226-9106577 Ultra Cyano 5µm Column 250mm x 10mm $1725.00
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226-9106578 Ultra Cyano 5µm Column 250mm x 21.2mm $4341.00
1/EA
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226-9106579 Ultra Cyano 5µm Column 250mm x 30mm $8971.00
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Ultra Silica HPLC Prep Columns

Base-deactivated spherical silica is useful for normal-phase or HILIC separations.

  • Stationary Phase Category: bare silica (L3)
  • Ligand Type: none
  • Particle: 5µm, spherical
  • Pore Size: 100 Å
  • Carbon Load: n/a
  • End-Cap: n/a
  • Surface Area: 300 m2/g
  • pH Range: 2.5 to 8
  • Maximum Temperature: 80°C
           
Cat.No. Name Size EA   Certified
226-9100557 Ultra Silica 5µm Column 50mm x 10mm $1067.00
1/EA
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226-9100558 Ultra Silica 5µm Column 50mm x 21.2mm $2123.00
1/EA
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226-9100559 Ultra Silica 5µm Column 50mm x 30mm $3689.00
1/EA
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226-9100517 Ultra Silica 5µm Column 100mm x 10mm $1348.00
1/EA
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226-9100518 Ultra Silica 5µm Column 100mm x 21.2mm $2607.00
1/EA
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226-9100519 Ultra Silica 5µm Column 100mm x 30mm $4347.00
1/EA
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226-9100567 Ultra Silica 5µm Column 150mm x 10mm $1508.00
1/EA
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226-9100568 Ultra Silica 5µm Column 150mm x 21.2mm $3347.00
1/EA
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226-9100569 Ultra Silica 5µm Column 150mm x 30mm $5535.00
1/EA
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226-9100577 Ultra Silica 5µm Column 250mm x 10mm $1725.00
1/EA
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226-9100578 Ultra Silica 5µm Column 250mm x 21.2mm $4341.00
1/EA
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226-9100579 Ultra Silica 5µm Column 250mm x 30mm $8964.00
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