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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 HPLC Column, 3 µm, 120 Å, 4.0 x 75 mm - 00101-11029

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, 4.0 x 75 mm - 00101-11029 £504.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 100 mm - 00101-11039

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, 4.6 x 100 mm - 00101-11039 £520.00
New
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 125 mm - 00101-11040

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, 4.6 x 125 mm - 00101-11040 £568.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 150 mm - 00101-11041

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, 4.6 x 150 mm - 00101-11041 £544.00
New
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 200 mm - 00101-11042

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, 4.6 x 200 mm - 00101-11042 £568.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 250 mm - 00101-11043

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, 4.6 x 250 mm - 00101-11043 £592.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 30 mm - 00101-11036

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, 4.6 x 30 mm - 00101-11036 £448.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 33 mm - 11101-11036

P/N: 11101-11036
Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 33 mm - 11101-11036 £448.00
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 50 mm - 00101-11037

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, 4.6 x 50 mm - 00101-11037 £488.00
New
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Welch Materials Xtimate C18 HPLC Column, 3 µm, 120 Å, 4.6 x 75 mm - 00101-11038

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, 4.6 x 75 mm - 00101-11038 £504.00
New
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 2.1 x 100 mm - 00101-27012

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, 3.5 µm, 120 Å, 2.1 x 100 mm - 00101-27012 £537.00
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 2.1 x 150 mm - 00101-27014

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, 3.5 µm, 120 Å, 2.1 x 150 mm - 00101-27014 £572.00
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 3.0 x 100 mm - 00101-27021

P/N: 00101-27021
Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 3.0 x 100 mm - 00101-27021 £549.00
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 3.0 x 150 mm - 00101-27023

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, 3.5 µm, 120 Å, 3.0 x 150 mm - 00101-27023 £599.00
New
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 3.0 x 50 mm - 00101-27019

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, 3.5 µm, 120 Å, 3.0 x 50 mm - 00101-27019 £537.00
New
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 4.6 x 100 mm - 00101-27039

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, 3.5 µm, 120 Å, 4.6 x 100 mm - 00101-27039 £572.00
New
Buy Now

Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 4.6 x 150 mm - 00101-27041

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, 3.5 µm, 120 Å, 4.6 x 150 mm - 00101-27041 £599.00
New
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 4.6 x 250 mm - 00101-27043

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, 3.5 µm, 120 Å, 4.6 x 250 mm - 00101-27043 £652.00
New
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Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 4.6 x 50 mm - 00101-27037

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, 3.5 µm, 120 Å, 4.6 x 50 mm - 00101-27037 £537.00
New
Buy Now

Welch Materials Xtimate C18 HPLC Column, 3.5 µm, 120 Å, 4.6 x 75 mm - 00101-27038

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, 3.5 µm, 120 Å, 4.6 x 75 mm - 00101-27038 £555.00
New
Buy Now