Capillary columns, fused silica

MANA723712.25EA 575 EUR
MANA723712.25 MANA723346.25 MANA723706.25 MANA723346.10 MANA723709.25 MANA723712.10 MANA723101.10 MANA723106.25 MANA723710.25 MANA723711.10 MANA723713.25 MANA723713.10 MANA723558.25 MANA723707.25 MANA723706.10 MANA723101.25 MANA723349.10 MANA723105.25 MANA723348.10 MANA723348.25 MANA723793.2 MANA723151.25 MANA723105.10 MANA723792.1 MANA723562.10 MANA723790.2 MANA723562.25 MANA723711.25 MANA723501.25 MANA723792.2 MANA723708.10 MANA723791.1 MANA723714.25 MANA723714.10 MANA723707.10 MANA723791.2 MANA723560.10 MANA723108.25 MANA723560.25 MANA723349.25 MANA723709.10 MANA723558.10 MANA723710.10 MANA723790.1 MANA723793.1 MANA723148.10 MANA723151.10 MANA723148.25 MANA723501.10 MANA723106.10 MANA723708.25 MANA723108.10
Capillary columns, fused silica
Chromatography Columns
The retention gap technique in combination with on-column injection allows concentration of a large sample volume in the capillary column. The retention gap depends on the solvent used:

  • Me-Sil retention gap is only for use with n-hexane and diethyl ether
  • Phe-Sil retention gap is for all solvents except methanol and water
  • CW retention gap is for all solvents and especially for methanol and water

A retention gap must be inert without any noticeable retention and it can also be used as transfer lines or precolumns. Me-Sil retention gaps are more inert than Phe-Sil, while Phe-Sil is less susceptible to contamination. Maximum temperatures for CW retention gaps 250 °C, for Me-Sil and Phe-Sil retention gaps 320 °C.

Deactivated capillary columns are recommended for preparation of capillary columns as precolumns, whenever a larger contamination capacity is required.
Untreated capillaries are recommended for capillary electrophoresis, for the preparation of capillary columns and capillary LC applications.
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