Welch Materials Ultisil XS-C18 Columns

Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting in strong compound retention and exhibiting outstanding steric hindrance selectivity. The column is particularly effective for separating small-molecule isomers, including structural and positional isomers.

Ultisil Series HPLC Columns are based on ultra-pure (purity > 99.999%) spherical and totally porous silica, unique bonding chemistry and proprietary surface modification techniques, producing excellent peak shape, column efficiency and exceptional lot-to-lot reproducibility. Ultisil column is the best choice for method development. owing to complete bonding chemistries and stable performance.

Features

Ultra-pure spherical porous silica, purity > 99.999%
Wide pH range: 2.0-8.0
High efficiency: theoretical plate > 80000/m
Excellent peak symmetry: tailing factor=0.95~1.05
Exceptional lot-to-lot reproducibility

Displaying 1 to 15 (of 15 products)

Item Name	Product Image	Price
Welch Materials Ultisil DLC XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 250 mm - H00277-31943 The diamond coating technology enhances the inner surface of the chromatography column with strong hydrophobicity, which overcomes the adverse effects of the column wall on separation.The high hardness and significant tensile properties of the...		£626.00 New
Welch Materials Ultisil XS-C18 Guard Cartridge, 3 µm, 120 Å, 2.1 x 10 mm, 2 pk - H00808-23017 Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID		£80.00 New
Welch Materials Ultisil XS-C18 Guard Cartridge, 3 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-03034 Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID		£84.00 New
Welch Materials Ultisil XS-C18 Guard Cartridge, 5 µm, 120 Å, 2.1 x 10 mm, 2 pk - H00808-24033 Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID		£48.00 New
Welch Materials Ultisil XS-C18 Guard Cartridge, 5 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-04046 Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID		£55.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 2.1 x 150 mm - H00277-21014 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£504.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 2.1 x 250 mm - H00277-21016 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£568.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 150 mm - H00277-21041 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£488.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 200 mm - H00277-21042 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£504.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 250 mm - H00277-21043 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£536.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 300 mm - H00277-21044 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£592.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 150 mm - H00277-31041 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£456.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 200 mm - H00277-31042 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£472.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 250 mm - H00277-31043 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£488.00 New
Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 300 mm - H00277-31044 Ultisil XS-C18 utilizes a unique multilayer bonding process with high bonding density and close ligand spacing, providing excellent spatial shape selectivity. It offers high column efficiency, high column capacity, and high carbon loading, resulting...		£536.00 New

Displaying 1 to 15 (of 15 products)

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Welch Materials Ultisil XS-C18 Columns

Welch Materials Ultisil DLC XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 250 mm - H00277-31943

Welch Materials Ultisil XS-C18 Guard Cartridge, 3 µm, 120 Å, 2.1 x 10 mm, 2 pk - H00808-23017

Welch Materials Ultisil XS-C18 Guard Cartridge, 3 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-03034

Welch Materials Ultisil XS-C18 Guard Cartridge, 5 µm, 120 Å, 2.1 x 10 mm, 2 pk - H00808-24033

Welch Materials Ultisil XS-C18 Guard Cartridge, 5 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-04046

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 2.1 x 150 mm - H00277-21014

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 2.1 x 250 mm - H00277-21016

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 150 mm - H00277-21041

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 200 mm - H00277-21042

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 250 mm - H00277-21043

Welch Materials Ultisil XS-C18 HPLC Column, 3 µm, 120 Å, 4.6 x 300 mm - H00277-21044

Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 150 mm - H00277-31041

Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 200 mm - H00277-31042

Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 250 mm - H00277-31043

Welch Materials Ultisil XS-C18 HPLC Column, 5 µm, 120 Å, 4.6 x 300 mm - H00277-31044

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