Varian 450-GC, User Manual

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1079 PTV Injector - Injectors
Varian, Inc. User Manual 450-GC Page: 175
THE 1079 PTV INJECTOR
The 1079 is optimized as Programmable Temperature Vaporizing (PTV) Injector and is
also used for large volume injections (LVI).
The 1079 PTV represents the latest evolution in Varian's Injector technology - extending
the benefits of Varian's patented 1093 Septum-equipped Programmable Injector (SPI),
to include split and splitless injection.
The 1079 PTV delivers improved chromatographic performance and increased GC up-
time, is compatible with the full range of open tubular columns and is capable of
isothermal or temperature programmed operation.
Advanced Performance
Five modes of operation: split, splitless, temperature-ramped splitless, Large Volume
Injection (LVI) and cold on-column; allow maximum Injector flexibility.
•
Temperature-programmable on-column mode optimizes the recovery of polar
and thermolabile compounds.
•
Large-volume injections in temperature-ramped splitless mode means less
sample preparation and increased sensitivity.
•
Manual or electronic control of gas flow guarantees optimum retention time
reproducibility.
•
An insert sealing design enables easy insert removal and replacement.
•
A unique inlet design for unparalleled system inertness allows analysis of even
the most thermolabile compounds.