Thermal Conductivity Detector (Tcd) Theory Of Operation - Agilent Technologies 6890 Series Service Manual

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Thermal Conductivity Detector (TCD)

Theory of operation

Column effluent diverted to bypass

channel. Filament surrounded by

reference gas.

Figure 330-2

Column effluent diverted to filament

channel. If sample is present, thermal

conductivity rises or falls, depending on

TCD flow path switching

Agilent 6890 Gas Chromatograph Service Manual

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