Faculty of Science, Agriculture & Engineering

Environmental Mass-Spectrometry

Dr Onoriode Esegbue
Onoriode Esegbue

  • Senior Analytical Technician

I am a geologist by training and have a master’s degrees in petroleum geoscience and, petroleum geochemistry, with a Ph.D. in organic geochemistry. On completion of my Ph.D. studies, I went on to do a Post-Doc. at Heriot Watt University working on a wide range of projects, including; characterisation of ultra-deep-water source rocks; CO2 leakage along fractures in caprocks; purification of agricultural wastewater etc. I also taught Petroleum Systems Analysis on the MSc. Applied Geoscience course.


I currently look after a wide range of analytical equipment (bulk to molecular geochemistry) at Newcastle University, including several rock preparations instruments (e.g. Tema Mill); organic matter extraction (soxtec, soxhlet, ASE, MERS); Iatroscan, LECO (CS230, RC612); Elementar (VarioMax, CUBE); GC-FID’s and GC-MS (for organics, pollutants, GHG etc); TGA-DSC-QMS; pyGCMS; GCMSMS etc.

Recent Publications

  1. Assil, Z., Esegbue, O. Mašek, O., Gutierrez, T., Free, A. (2021) Corrigendum to “Specific enrichment of hydrocarbonclastic bacteria from diesel-amended soil on biochar particles”. Science of the Total Environment, 776. 1-3. 10.1016/j.scitotenv.2021.146796
  2. Esegbue, O., Jones, D.M., van Bergen, P., Kolonic, S. (2020) Quantitative diamondoid analysis indicates oil co-sourcing from a deep petroleum system onshore Niger Delta Basin. AAPG Bulletin, 104, (6). 1231-1259. 10.1306/0122201618217407
  3. Buckman, J., Aboussou, A., Esegbue, O., Wagner, T., Gambacorta, G. (2020) Fine-Scale Heterogeneity of Pyrite and Organics within Mudrocks: Scanning Electron Microscopy and Image Analysis at the Large Scale. Minerals, MDPI, 10 (4). 354-360. 10.3390/min10040354
  4. Assil, Z., Esegbue, O. Mašek, O., Gutierrez, T., Free, A. (2020) Specific enrichment of hydrocarbonclastic bacteria from diesel-amended soil on biochar particles. Science of the Total Environment, 762. 15-25. 10.1016/j.scitotenv.2020.143084
  5. Phillips, T., Forbes Inskip, N.D., Esegbue, O., Borisochev, G., Bultreys, T., Cnudde, V., Bisdom, K., Kampman, K., Busch, A. (2020) Laboratory based investigation into the fluid flow properties of natural and 3D printed rough fractures. EAGE. 1-5. 10.3997/2214-4609.202021014
  6. Egbo, K., Adeigbe, C.O., Esegbue, O (2020) Geochemical characterization of some biodegraded oils from the Niger Delta Basin, Nigeria. Environmental and Earth Sciences Research Journal, 7 (4). 127-133. 10.18280/eesrj.070401
  7. Egbo, K., Adeigbe, C.O., Esegbue, O (2020) Preliminary geochemical investigation of some crude oil from the Niger Delta Basin, Nigeria. Research in Environment and Earth Sciences. 6 (4). 18-25. 10.17632/55s3m9kms7.1