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What does ECD mean?

1 Answers

McCassandra

07/30/25 5:21am

ECD stands for Electrical Conductivity Detector. It is the most sensitive gas chromatography detector and also the earliest selective detector. Below are specific details about ECD: 1. Application Fields: Due to its high sensitivity and excellent selectivity, it is also the most widely used among radioactive ionization detectors. It is extensively applied in fields such as biology, medicine, pesticides, environmental protection, metal complexes, and meteorological tracking. 2. Principle: The main body of the conductivity detector consists of a conductive anode or cathode made of glassy carbon (or platinum sheet). The two electrodes are separated by a 0.05mm thick polytetrafluoroethylene film. This film has a long strip-shaped channel in the middle as a flow cell, with a volume of only 1-3ul. The anode and cathode are only 0.05mm apart, and when ions in the mobile phase pass through the flow cell, they cause a change in conductivity.

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