Electron Capture Detector

c. 1960 in Mill Hill
National Institute for Medical Research
James Ephraim Lovelock

Electron capture detector for gas chromatograph, constructed by James Ephraim Lovelock and the National Institute for Medical Research, Mill Hill, London, England, 1955-1965

The Electron Capture Detector is so sensitive that it detects gases such as CFCs at a concentration of one part per trillion. This is equivalent to detecting one drop of ink diluted in 20 Olympic-size swimming pools. It took Lovelock around 8 years to perfect this invention. It has since been used all over the world and has been crucial in raising awareness of the extent of global air pollution

On display

Science Museum: Making the Modern World Gallery

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Experimental Chemistry
Object Number:
1977-258 Pt1
component - object
Lovelock, James Ephraim

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