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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, 5 µm, 120 Å, 2.1 x 100 mm - 00101-21012

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, 5 µm, 120 Å, 2.1 x 100 mm - 00101-21012 £480.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 125 mm - 00101-21013

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, 5 µm, 120 Å, 2.1 x 125 mm - 00101-21013 £520.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 150 mm - 00101-21014

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, 5 µm, 120 Å, 2.1 x 150 mm - 00101-21014 £488.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 200 mm - 00101-21015

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, 5 µm, 120 Å, 2.1 x 200 mm - 00101-21015 £520.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 250 mm - 00101-21016

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, 5 µm, 120 Å, 2.1 x 250 mm - 00101-21016 £544.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 30 mm - 00101-21009

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, 5 µm, 120 Å, 2.1 x 30 mm - 00101-21009 £424.00
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 33 mm - 09101-21009

P/N: 09101-21009
Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 33 mm - 09101-21009 £424.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 50 mm - 00101-21010

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, 5 µm, 120 Å, 2.1 x 50 mm - 00101-21010 £440.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 2.1 x 75 mm - 00101-21011

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, 5 µm, 120 Å, 2.1 x 75 mm - 00101-21011 £448.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 100 mm - 00101-21021

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, 5 µm, 120 Å, 3.0 x 100 mm - 00101-21021 £488.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 125 mm - 00101-21022

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, 5 µm, 120 Å, 3.0 x 125 mm - 00101-21022 £528.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 150 mm - 00101-21023

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, 5 µm, 120 Å, 3.0 x 150 mm - 00101-21023 £520.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 200 mm - 00101-21024

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, 5 µm, 120 Å, 3.0 x 200 mm - 00101-21024 £528.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 250 mm - 00101-21025

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, 5 µm, 120 Å, 3.0 x 250 mm - 00101-21025 £544.00
New
Buy Now

Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 30 mm - 00101-21018

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, 5 µm, 120 Å, 3.0 x 30 mm - 00101-21018 £448.00
New
Buy Now

Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 50 mm - 00101-21019

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, 5 µm, 120 Å, 3.0 x 50 mm - 00101-21019 £464.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.0 x 75 mm - 00101-21020

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, 5 µm, 120 Å, 3.0 x 75 mm - 00101-21020 £480.00
New
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.9 x 150 mm - 00101-21067 (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, 5 µm, 120 Å, 3.9 x 150 mm - 00101-21067 (Replaces 17101-21032) £584.00
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.9 x 250 mm - 00101-21069 (Replaces 19101-21034)

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, 5 µm, 120 Å, 3.9 x 250 mm - 00101-21069 (Replaces 19101-21034) £608.00
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Welch Materials Xtimate C18 HPLC Column, 5 µm, 120 Å, 3.9 x 300 mm - 00101-21070 (Replaces 21101-21035)

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, 5 µm, 120 Å, 3.9 x 300 mm - 00101-21070 (Replaces 21101-21035) £648.00
New
Buy Now