JAMES HOLMES / OXFORD CENTRE FOR MOLECULAR SCIENCES / SCIENCE PHOTO LIBRARY JAMES HOLMES / OXFORD CENTRE FOR MOLECULAR SCIENCES / SCIENCE PHOTO LIBRARY
Mass spectrum of the enzyme DS lysozyme, displayed on the computer screen of a VG BIO-Q mass spectrometer used for protein analysis at Oxford University. Mass spectrometers are used to identify chemical compounds by exploiting the behaviour of their molecular ions in magnetic & electric fields. Samples in liquid form are injected into the machine in background. Inside, the substance is ionised by bombardment from high- energy electrons. Variable electric and magnetic fields are used to accelerate & deflect the ions towards a detector.
Model release not required. Property release not required.