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PTV-Programmable Temperature Vaporization Injector - SRI Instruments
PTV - Programmable Temperature Vaporization Injector
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Ballistic heating
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Ability to stop carrier gas
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Large volume injections
to 1.0mL+
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Achieve low detection limits without pre-concentration
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Split/splitless & on-column Modes
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Thermal desorption applications
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PeakSimple control
The Programmable Temperature Vaporization (PTV) option adds ballistic heating capability to the
in order to accommodate large volume injections and thermal desorption applications. In the PTV mode,
the insulation is removed from the Split/Splitless injector so that the column oven fan can cool the injector down
between analyses.
A small amount of adsorbent material, like Tenax, is packed inside the PTV injector sleeve. The initial column
oven temperature, which maintains the injector cool-down temperature, should be set slightly higher than the boiling point
of the solvent. As a large volume of sample is injected, the solvent vaporizes and passes through the adsorbent material
and out the split vent. The split vent and carrier gas are under PeakSimple control. The carrier gas can be turned OFF
during the PTV ballistic heating, in order to preheat the adsorbed analytes prior to desorbing onto the column.
The Silcosleeve
liner can be packed with adsorbents like
Tenax, loaded with sample offline, then inserted into the PTV
for desorption. With the addition of a
the PTV
can function as a thermal desorber for volatiles.
8690-7034 PTV & Split/splitless injector upgrade
$ 2,059.00
8690-8034 PTV & Split/splitless injector with 10-port
valve
$ 4,119.00
PTV - Programmable Temperature Vaporization Injector
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