Accessories/miscellaneous
PEEKclad-FST™
– PEEK-Clad Fused Silica Tubing
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For zero dead volume connections
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Perfect for capillary LC
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Inert, smooth flow path
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1/32" or 1/16" OD and 25-300 µm ID
This product combines the inert, smooth inner surface and
very precise IDs of fused silica with the flexibility and easy
handling of PEEK. Due to its mechanical strength, it can be
used with either polymeric or metal ferrules.
The ends are cut perfectly square with sophisticated
equipment and polished for zero dead volume connections
in capillary LC. In contrast to a polymer sleeve/fused silica connection, there is no
possibility of liquid filling the gap between the sleeve and the tubing.
All this may result in a lower carry over or cross contamination between samples,
which can lead to improved reproducibility. The smooth inner wall surface gives
lower band broadening and therefore higher efficiency and resolution.
PEEKclad™ is compatible with most organic solvents and strong acids (pH 0–10),
but not compatible with hydrofluoric acid. In fitting details the PEEK outer surface
may be wetted; thus the chemical compatibility of PEEK has to be considered.
PEEK-coated fused silica tubing can be manufactured in different proprietary
processes. Trade names are PEEKclad-FST™ by Valco Instruments Co. Inc. and
VICI International, and PEEKsil™ by SGE International Pty, Ltd.
Product Numbers
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Further Reference
84