The acid and neutral nitrogen compounds characterized by negative ESI Orbitrap MS in a heavy oil before and after oxidation

Resolution and Identification of Elemental Compositions for More than 3000 Crude Acids in Heavy Petroleum by Negative-Ion Microelectrospray High-Field Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Kuangnan Qian, Winston K. Robbins, Christine A. Hughey et al. · Energy & Fuels · 2001 · 400 citations

Natural Sciences, Chemistry, Petroleum Engineering +13

Characterization of Heteroatom Compounds in a Crude Oil and Its Saturates, Aromatics, Resins, and Asphaltenes (SARA) and Non-basic Nitrogen Fractions Analyzed by Negative-Ion Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Quan Shi, Dujie Hou, Keng H. Chung et al. · Energy & Fuels · 2010 · 354 citations

Natural Sciences, Chemistry, Analytical Chemistry +15

Identification of acidic NSO compounds in crude oils of different geochemical origins by negative ion electrospray Fourier transform ion cyclotron resonance mass spectrometry

Christine A. Hughey, Ryan P. Rodgers, Alan G. Marshall et al. · Organic Geochemistry · 2002 · 312 citations

Natural Sciences, Chemistry, Analytical Chemistry +12

Chemical Aspects of In-Situ Combustion - Heat of Combustion and Kinetics

Jakob Burger · Society of Petroleum Engineers Journal · 1972 · 275 citations

Engineering, Chemical Engineering, Chemistry +17

Microbial alteration of the acidic and neutral polar NSO compounds revealed by Fourier transform ion cyclotron resonance mass spectrometry

Sunghwan Kim, Lateefah A. Stanford, Ryan P. Rodgers et al. · Organic Geochemistry · 2005 · 245 citations

Life Sciences, Chemistry, Microbiology +14