CP-3800 GC Operator’s Manual
51
The CP-1177 Split/Splitless Capillary Injector
The CP-1177 is a dedicated Split/Splitless Isothermal Capillary Injector which
can be operated in two modes:
•
Split
(Isothermal)
•
Splitless
(Isothermal)
The CP-1177 Injector can be used with a wide range of narrow bore to large
bore (100 to 530
µ
m ID) capillary columns. The basic pneumatics design is
a wide range inlet flow controller and back pressure regulated column head
pressure. This is the case whether manual pneumatics or Electronic Flow
Control is used.
Features of the CP-1177 injector
•
The CP-1177 can be operated isothermally from 50 to 450 °C.
•
Changing from one injection mode to another typically involves a change
of injector insert and a modification to the injector and EFC program.
Glass inserts can be easily changed from the top of the injector.
•
The internal injector temperature profile keeps the septum cool while
maintaining the point of injection at the setpoint temperature.
•
The CP-1177 injector design facilitates large volume injection (5 - 100
µ
L).
•
The CP-1177 uses positive septum purge to minimize the adsorption of
sample onto the injector septum and to prevent contaminants from the
septum entering the column.
•
The CP-1177 uses a unique dual split vent that allows effective
sweeping of the entire injector body.
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