A naturally occurring, chlorophyll b related porphyrinM.I. Chicarelli; J.R. Maxwell · 1984

Characterisation of fossil porphyrins of the “di-DPEP” typeW.G. Prowse; M.I. Chicarelli; B.J. Keely; S. Kaur; J.R. Maxwell · 1987

Porphyrins with a novel exocyclic ring system in an oil shaleM.I. Chicarelli; G.A. Wolff; M. Murray; J.R. Maxwell · 1984

Structure analysis of naturally occurring alkyl porphyrins by hydrogen chemical ionisation mass spectrometryG.A. Wolff; M.I. Chicarelli; G.J. Shaw; R.P. Evershed; J.M.E. Quirke; J.R. Maxwell · 1984

Computerised capillary gas chromatographic—mass spectrometric studies of the petroporphyrins of the gilsonite bitumen (Eocene, U.S.A.)J.P. Gill; R.P. Evershed; M.I. Chicarelli; G.A. Wolff; J.R. Maxwell; G. Eglinton · 1985

Evidence for sulphide links in a crude oil asphaltene and kerogens from reductive cleavage by lithium in ethylamineI.C. Hofmann; J. Hutchison; J.N. Robson; M.I. Chicarelli; J.R. Maxwell · 1992

Application of inductively coupled plasma-mass spectrometry in the detection of organometallic compounds in chromatographic fractions from organic rich shalesM.I. Chicarelli; C.B. Eckardt; C.R. Owen; J.R. Maxwell; G. Eglinton; R.C. Hutton; A.N. Eaton · 1990