Technologies Develops New Standalone Preheater for Chromatographers
Wishing to Perform High Temperature Separations
Florida (February 27, 2005) – Temperature Programmed Liquid Chromatography
(TPLC) specialist, Selerity Technologies Inc introduces its new
standalone preheater incorporating patented technology – the Caloratherm™.
The preheater reaches an upper temperature limit of 100 ° C
and can be easily integrated with any laboratory's HPLC equipment.
Selerity's new Caloratherm
is an independent preheater that operates in the isothermal mode.
The instrument will particularly appeal to existing HPLC users who
are keen to experiment with temperature as a parameter to achieve
better peak shapes and results in their chromatographic separations.
The Caloratherm, which is compatible with existing ovens, efficiently
heats the mobile phase using a novel technique that eliminates band
broadening and misshaped peaks.
incorporates the highly responsive characteristics of the preheating
system developed for Selerity's Polaratherm™ total temperature controller
oven. To overcome thermal mismatch, Selerity's preheater design
consists of a low mass, low volume device, which can be positioned
in the column inlet tubing to ensure responsive heat transfer into
the mobile phase before it enters the column. Heating of the mobile
phase is thereby performed completely independently from the oven
but calibrated to the desired temperature to reach accurate thermal
innovative preheater design ensures that the heated zone becomes
thermally insulated. A small thermocouple is attached directly to
the tubing and connected using an electrically isolated circuit.
The probe reads the tubing wall temperature, which accurately follows
that of the fluid down its core. Through the temperature sensor,
the heating device automatically compensates for the heating requirements
of fluids and ensures the consistency of the temperature along the
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