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Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Programmed Temperature Vaporization Inlet (PTV) 240
Split modes
Pulsed split modes
The pressure pulse modes (using the septum- or septumless head) increase
inlet pressure just before the beginning of a run and return it to the normal
value after a specified time. The pulse sweeps the sample out of the inlet and
into the column faster, reducing the chance for sample decomposition in the
inlet.
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