Pulsed Split Modes - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Programmed Temperature Vaporization Inlet (PTV)

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

Agilent 6890 Gas Chromatograph Service Manual

6890a 6890 plus