Thermal Conductivity Basics When the carrier gas is contaminated by sample , the cooling effect of the gas changes. The difference in cooling is used to generate the detector signal. The TCD is a nondestructive, concentration sensing detector. A heated filament is cooled by the flow of carrier gas . Flow Flow
Thermal Conductivity Basics When the carrier gas is contaminated by sample , the cooling effect of the gas changes. The difference in cooling is used to generate the detector signal. The TCD is a nondestructive, concentration sensing detector. A heated filament is cooled by the flow of carrier gas . Flow Flow
When a compound elutes, the thermal conductivity of the gaseous mixture of carrier gas and compound gas is lowered, and the filament in the sample column becomes hotter than the other control column. Its resistance increased, and this imbalance between control and sample filament resistances is measured by a simple gadget and a signal is recorded Thermal Conductivity Detector
When a compound elutes, the thermal conductivity of the gaseous mixture of carrier gas and compound gas is lowered, and the filament in the sample column becomes hotter than the other control column. Its resistance increased, and this imbalance between control and sample filament resistances is measured by a simple gadget and a signal is recorded Thermal Conductivity Detector
Thermal Conductivity Detector
Thermal Conductivity Detector