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Welch Materials / Xtimate

Xtimate

Logo of the manufacturer Welch

Xtimate® HPLC columns are manufactured by Welch Materials Inc., located in Shanghai, China.

 

There are two types of Xtimate® HPLC columns, those based on Hybrid Silica-Polymer packing materials, and those based on pure polymer media.

 

Xtimate® hybrid phases are available with different reversed-phase modifications and show high stability and long column lifetime.

 

Xtimate® SEC was developed for aqueous size exclusion chromatography. The base material is a high purity silica-gel, modified with a hydrophilic polymer and diol functional groups.  

 

Xtimate® G10 Glucan Gel is a special column for cephalosporine analysis.

 

Xtimate® Sugar-Ca and Sugar-H are based on modified polystyrene-divinylbenzene polymer with 8% cross-linking. The columns are applicable for sugar‒ and carbohydrate analysis.

 

Xtimate® PS/DVB are based on unmodified polystyrene-divinylbenzene polymer.

Picture of a column and packaging from Welch
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Internal Diameter
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Chemistry
Chemistry Producers Term
Pore Size
USP Class
Carbon Load
Bet Surface Area [m2/g]
Endcapping
Column Type
Lower Molecular Weight
Upper Molecular Weight
Base Material
Hardware Material
Hardware Type
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Temperature Maximum [°C]
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Matrix
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Items 651-660 of 660

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Xtimate SEC-200, Semi-Prep Cartridge: 5µm, 10×10mm
WE-00808-16501
Xtimate® SiO2, 5µm, 4.6x250mm, HPLC Column
WE-00106-21043
Xtimate® SiO2, 5µm, 4.6x150mm, HPLC Column
WE-00106-21041
Xtimate® NH2, Cartridge: 5µm, 120Å, 4.6x10mm, for 3.0-8.0 mm, (00808-01101 or 00808-01108 holder needed)
WE-00808-04104
Xtimate® G-10, 15x400mm, HPLC Column
WE-00110-44056
Xtimate® G-10, 10x400mm, HPLC Column
WE-00110-44055
Xtimate® G-10, 15x300mm, HPLC Column
WE-00110-44054
Xtimate® G-10, 10x300mm, HPLC Column
WE-00110-44053
Xtimate® C18, 4µm, 3.9x150mm, HPLC Column
WE-1000-870152
Xtimate® Sugar-Ca, 8µm, 6.5x300mm, HPLC Column
WE-00108-43047
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Items 651-660 of 660

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Technical Data

Phase-Name

Modification

Particle Size

Pore Size

End-capping

C-Content

USP

Surface

pH-Range

Tmax

Xtimate® C18

C18

3, 5, 10 µm

120 Å


200 Å


300 Å

+

14%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® C8

C8

3, 5, 10 µm

120 Å


200 Å


300 Å

+

10%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® C4

C4

3, 5, 10 µm

120 Å


200 Å


300 Å

+

7%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® Phenyl-Hexyl

Phenylhexyl

3, 5, 10 µm

120 Å


200 Å


300 Å

-

12%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® CN

Cyano

3, 5, 10 µm

120 Å


200 Å


300 Å

+

6%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® Polar-RP

Polar embedded Alkyl

3, 5, 10 µm

120 Å


200 Å


300 Å

-

14%

N/A

320 m2/g

1.0‒12.5

N/A

Xtimate® SEC

N/A

3, 5 µm

120 Å


300 Å


700 Å


1000 Å

+

N/A

N/A

N/A

2.0‒7.5

N/A

Xtimate® G-10

N/A

40‒120 µm

60 Å

N/A

N/A

N/A

N/A

2.0‒13.0

N/A

Xtimate® Sugar-Ca

N/A

5, 8 µm

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Xtimate® Sugar-H

N/A

5, 8 µm

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Xtimate® PS/DVB

N/A

5 µm

120 Å


300 Å


500 Å


1000 Å

N/A

N/A

N/A

N/A

1.0‒14.0

N/A

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