Current Interests

• Optimisation and development of DESI ambient mass spectrometry.
• Novel ambient mass spectrometry techniques such as PADI and EESI.
• SIMS: developing the underpinning metrology; G-SIMS and fundamentals of cluster ion bombardment.

Biography

Felicia Green is involved in developing the underpinning metrology base for secondary ion mass spectrometry (SIMS), making significant contributions to the field in three areas: (1) the G-tip innovation, which is now available on the instrument market (2) studying the issues and solutions for improved mass accuracy in SIMS, now developed into an ISO standard, and (3) research into the fundamentals of cluster ion bombardment. In 2006, Felicia established a new area of research at NPL in desorption electrospray ionisation mass spectrometry (DESI-MS). This has resulted in the optimisation and standardisation of the novel technique, with some key publications including a systematic study of the parameters affecting repeatability, sensitivity and rate of consumption of material. This firmly established NPL's reputation in the field, and Felicia has given several invited papers and talks on the subject. Felicia is a member of the Institute of Physics, UK surface analysis forum, British and American Mass Spectrometry Societies and American Chemistry Society, as well as the co-ordinator of the ASMS imaging workshop. Felicia obtained an MPhys in 2003, and a DPhil in 'Identification of complex molecules at surfaces and interfaces' in 2009, both from the University of Oxford.

Selected Publications

• Tof-SIMS: Accurate mass scale calibration
  F. M. Green, I. S. Gilmore, M. P. Seah
  J. Am. Soc. Mass Spectrom., 17, page 514 (2006)
• Identification of Complex Molecules at Surfaces: G-SIMS and SMILES Fragmentation Pathways
  F. M. Green, E. J. Dell, I. S. Gilmore, M. P. Seah
  Int. J. Mass Spectrom., 272, page 38 (2008)
• Developing Repeatable Measurements for Reliable Analysis of Molecules at Surfaces using DESI
  F. M. Green, P. Stokes, C. Hopley, M. P. Seah, I. S. Gilmore, G. O'Connor
  Anal. Chem., 81 page 2286 (2009)
• Ambient mass spectrometry: advances and applications in forensics
  F. M. Green, T. L. Salter, P. Stokes, I. S. Gilmore, G. O'Connor
  Surf. Interface Anal., 42, page 347 (2010)
• The effect of electrospray solvent composition on desorption electrospray ionisation (DESI) efficiency
  F. M. Green, T. L. Salter, I. S. Gilmore, P. Stokes, G. O'Connor
  The Analyst, in press

Contact details

Email: felicia.green@npl.co.uk
Tel: 020 8943 6153