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Welch Materials Xtimate C18 Columns

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems across a wide pH range and temperature conditions. Even under the most stringent conditions, it offers highly stable performance and a longer lifespan, with a longer service life than regular C18 columns under standard conditions.

Xtimate HPLC column derives its outstanding performance from a special hybrid partic le based technique, which coats a unique 5nm organic/inorganic polymer layer on the silica surface, so that the pH range is extended to 1.0-12.5. Xtimate column is designed for HPLC method development. Regardless of the types of mobile phase or high temperature, Xtimate HPLC column always has stable performance and long lifetime.

X features of Xtimate column

  • eXtra pH range: wide pH range from 1.0 to 12.5, excellent peak shape for strong bases
  • eXtra column lifetime: 5 times of similar product such as Gemini
  • eXtra performance: column efficiency of 5μm columns is as high as 90000/m, 2-3 times of that of Xterra
  • eXtra care from Welch: enjoy excellent pre-sales and after-sales service from Welch


Item Name Product Image Price

Welch Materials Xtimate C18 Guard Cartridge, 10 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-05101

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID
Welch Materials Xtimate C18 Guard Cartridge, 10 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-05101 £60.00
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Welch Materials Xtimate C18 Guard Cartridge, 3 µm, 120 Å, 2.1 x 10 mm, 2 pk - 00808-23101

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID
Welch Materials Xtimate C18 Guard Cartridge, 3 µm, 120 Å, 2.1 x 10 mm, 2 pk - 00808-23101 £101.00
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Welch Materials Xtimate C18 Guard Cartridge, 3 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-03101

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID
Welch Materials Xtimate C18 Guard Cartridge, 3 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-03101 £106.00
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Welch Materials Xtimate C18 Guard Cartridge, 5 µm, 120 Å, 2.1 x 10 mm, 2 pk - 00808-24101

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID
Welch Materials Xtimate C18 Guard Cartridge, 5 µm, 120 Å, 2.1 x 10 mm, 2 pk - 00808-24101 £64.00
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Welch Materials Xtimate C18 Guard Cartridge, 5 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-04101

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID
Welch Materials Xtimate C18 Guard Cartridge, 5 µm, 120 Å, 4.6 x 10 mm, 2 pk - 00808-04101 £69.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 3.9 x 150 mm - 00101-31067 (Replaces 17101-21032)

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 3.9 x 150 mm - 00101-31067 (Replaces 17101-21032) £528.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 3.9 x 300 mm - 00101-31070 (Replaces 21101-31035)

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 3.9 x 300 mm - 00101-31070 (Replaces 21101-31035) £584.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.0 x 250 mm - 00101-31034

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.0 x 250 mm - 00101-31034 £448.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.0 x 300 mm - 00101-31035

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.0 x 300 mm - 00101-31035 £528.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 150 mm - 00101-31041

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 150 mm - 00101-31041 £424.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 200 mm - 00101-31042

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 200 mm - 00101-31042 £440.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 250 mm - 00101-31043

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 250 mm - 00101-31043 £448.00
New
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 300 mm - 00101-31044

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 4.6 x 300 mm - 00101-31044 £464.00
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Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 7.8 x 250 mm - 00101-31051

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 10 µm, 120 Å, 7.8 x 250 mm - 00101-31051 £752.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 100 mm - 00101-11012

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 100 mm - 00101-11012 £488.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 125 mm - 00101-11013

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 125 mm - 00101-11013 £544.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 150 mm - 00101-11014

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 150 mm - 00101-11014 £520.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 200 mm - 00101-11015

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 200 mm - 00101-11015 £544.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 250 mm - 00101-11016

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 250 mm - 00101-11016 £568.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 30 mm - 00101-11009

Xtimate C18 column utilizes Welch's patented organic-inorganic hybrid surface technology to modify the silica gel matrix. Specifically designed for liquid chromatography method development, it allows the use of a variety of mobile phase systems...
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 2.1 x 30 mm - 00101-11009 £448.00
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