Philip A. Freedman

A new variable dispersion double-focusing plasma mass spectrometer with performance illustrated for Pb isotopes

N.S. Belshaw, Philip A. Freedman, R.K. O’Nions et al. · International Journal of Mass Spectrometry · 1998 · 327 citations

Natural Sciences, Chemistry, Physics +10

Communication. Isotopic ratio measurement using a double focusing magnetic sector mass analyser with an inductively coupled plasma as an ion source

Andrew J. Walder, Philip A. Freedman · Journal of Analytical Atomic Spectrometry · 1992 · 206 citations

Pharmacy, Chemistry, Analytical Chemistry +16

Recent developments in inductively coupled plasma magnetic sector multiple collector mass spectrometry

Alex N. Halliday, Der‐Chuen Lee, John N. Christensen et al. · International Journal of Mass Spectrometry and Ion Processes · 1995 · 190 citations

Natural Sciences, Chemistry, Physics +10

Isotope ratio measurement of lead, neodymium and neodymium–samarium mixtures, Hafnium and Hafnium–Lutetium mixtures with a double focusing multiple collector inductively coupled plasma mass spectrometer

Andrew J. Walder, I. Platzner, Philip A. Freedman · Journal of Analytical Atomic Spectrometry · 1993 · 161 citations

Natural Sciences, Chemistry, Analytical Chemistry +16

Lead isotope ratio measurement of NIST 610 glass by laser ablation inductively coupled plasma mass spectrometry

Andrew J. Walder, Ian Abell, I. Platzner et al. · Spectrochimica Acta Part B Atomic Spectroscopy · 1993 · 161 citations

Natural Sciences, Chemistry, Materials Science +17