The electron capture detector (ECD) is a selective detector with high sensitivity for organo-halogen, organometallic compounds.
The ECD is equipped with a radioactive isotope. The invention of the detector in 1957 is attributed to Lovelock. The detector measures the electrical conductivity of the gas stream (flowing from the chromatography column) as a result of exposure to ionizing radiation.
Application:
The ECD detector is most often used to detect volatile chlororganic compounds in refinery streams, gasoline, kerosene and crude oil. Detection limit as low as 0.1-10 ppbDetektor ECD stosujemy najczęściej do wykrywania lotnych związków chlororganicznyh w strumieniach rafineryjnych, benzynie, nafcie, ropie naftowej. Granica detekcji nawet: 0,1 -10 ppb.
