J. Hopkinson

Some experiments performed with a variable width monitor slit on a double-focusing mass spectrometer of Nier-Johnson geometry

A. E. Williams, J. Beynon, A. Fontaine, 1969 .

Mass spectrometry: variation of the energy released in a meta-stable decomposition as a function of the life-time of the decomposing ion

J. Beynon, G. R. Lester, J. Hopkinson, 1968 .

Mass spectrometry — the appearance potentials of “meta-stable peaks” in some aromatic nitro compounds — a chemical reaction in the mass spectrometer

J. Beynon, G. R. Lester, J. Hopkinson, 1969 .

Metastable ion fragmentation processes in n-alkanes

A. E. Williams, A. Mathias, J. Hopkinson, 1970 .

The mass spectra of some guanidines

A. E. Williams, J. Beynon, J. Hopkinson, 1968 .