other inlet systems, OPTIC-4 has its own GC oven temperature sensor to increase the accuracy of the
column flow calculations.
Auxiliary EFC unit is a single flow control channel typically used for control of the inlet backflush
flow.
2.3 Improved Flexibility
OPTIC-4 can be used for hot-split, hot-splitless, cold-split, cold-splitless and on-column injections.
These techniques are discussed in greater details in Section 7 “Defining and Running Methods”.
Facilities such as large volume sampling, thermal desorption, and pyrolysis are standard features.
OPTIC-4 offers far greater control over the fate of the sample in the inlet than conventional systems.
When the sample is injected, the analyst can select the temperature, the column flow and the split
flow. It is also possible to inject under static gas flow conditions. Consequently, it is possible to
develop many novel approaches to sample injection. OPTIC-4 also features interfaces for the GC and
autosampler and auxiliary connections for interfacing to other external equipment.
2.4 Compatibility
OPTIC-4 is designed to be compatible with most popular makes and models of GC and GC-MS. Once
installed, OPTIC-4 should be fully compatible with an auto-sampler. Please visit our web site at
www.glsciences.eu or contact your local OPTIC-4 distributor if you have any questions concerning
compatibility.
The interfaces are discussed in greater detail in the hardware and configuration sections of this
manual, and the appendices.
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