| Rapid prediction of total petroleum hydrocarbons concentration in contaminated soil using vis-NIR spectroscopy and regression techniques RK Douglas, S Nawar, MC Alamar, AM Mouazen, F Coulon Science of the Total Environment 616, 147-155, 2018 | 123 | 2018 |
| Evaluation of major factors influencing the geochemistry of groundwater using graphical and multivariate statistical methods in Yenagoa city, Southern Nigeria KS Okiongbo, RK Douglas Applied water science 5, 27-37, 2015 | 67 | 2015 |
| The applicability of spectroscopy methods for estimating potentially toxic elements in soils: state-of-the-art and future trends S Nawar, S Cipullo, RK Douglas, F Coulon, AM Mouazen Applied Spectroscopy Reviews 55 (7), 525-557, 2020 | 43 | 2020 |
| Evaluation of vis-NIR reflectance spectroscopy sensitivity to weathering for enhanced assessment of oil contaminated soils RK Douglas, S Nawar, S Cipullo, MC Alamar, F Coulon, AM Mouazen Science of the total environment 626, 1108-1120, 2018 | 34 | 2018 |
| Hydrogeochemical analysis and evaluation of groundwater quality in Yenagoa City and Environs, Southern Nigeria KS Okiongbo, R Douglas Ife Journal of Science 15 (2), 209-222, 2013 | 30 | 2013 |
| Rapid detection of alkanes and polycyclic aromatic hydrocarbons in oil‐contaminated soil with visible near‐infrared spectroscopy RK Douglas, S Nawar, MC Alamar, F Coulon, AM Mouazen European Journal of Soil Science 70 (1), 140-150, 2019 | 22 | 2019 |
| Almost 25 years of chromatographic and spectroscopic analytical method development for petroleum hydrocarbons analysis in soil and sediment: state-of-the-art, progress and trends RK Douglas, S Nawar, MC Alamar, F Coulon, AM Mouazen Critical Reviews in Environmental Science and Technology 47 (16), 1497-1527, 2017 | 21 | 2017 |
| The application of a handheld mid-infrared spectrometry for rapid measurement of oil contamination in agricultural sites RK Douglas, S Nawar, MC Alamar, F Coulon, AM Mouazen Science of the total environment 665, 253-261, 2019 | 10 | 2019 |
| Aspects of Geophysical Survey Using Vertical Electrical Sounding (VES) for Groundwater Exploration in Parts of Ahoada West LGA of Rivers State, Southern Nigeria AO Egai, RK Douglas Geosciences 5 (1), 31-38, 2015 | 4 | 2015 |
| Rapid estimation of heavy metals in crude oil contaminated soils by X-ray fluorescence (XRF) Spectroscopy D R.K, O M, O A. W Global journal of Earth and Environmental Science 5 (2), 51-57, 2020 | 2 | 2020 |
| Stress-strain characteristics of a cement-bentonite mix for barrier system: The implication of time and curing AW Opukumo, DE Egirani, RK Douglas Asian journal of engineering and technology 9 (2), 16-32, 2021 | 1 | 2021 |
| Evaluation of the potential of agricultural wastes-cattle manure and poultry manure for bioremediation of crude oil-contaminated soil RK Douglas, PP Araka, A Fou, A Hart Bioremediation Journal, 1-8, 2024 | | 2024 |
| Perspective Chapter: Rapid Measurement of Potentially Toxic Elements (PTEs) in Petroleum Hydrocarbons Polluted Soils by X-Ray Fluorescence (XRF) Spectroscopy RK Douglas Heavy Metals-Recent Advances, 2022 | | 2022 |
| Rapid Measurement of Potentially Toxic Elements (PTEs) in Petroleum Hydrocarbons Polluted Soils by X-Ray Fluorescence (XRF) Spectroscopy RK Douglas IntechOpen, 2022 | | 2022 |
| Use of rice husk ash for copper, chromium, zinc, and lead bioremediation in crude oil-contaminated soil RK Douglas, A Fou, PP Araka European Journal of Applied Sciences 10 (5), 27-33, 2022 | | 2022 |
| Assessing the extent of heavy metal contamination in crude oil-contaminated soils in the Niger Delta, Nigeria using geochemical indicators AO Egai, RK Douglas, F Ayebatin Global journal of Earth and Environmental Science 7 (1), 1-9, 2022 | | 2022 |
| Visible-near Infrared (Vis-Nir) Spectroscopy as a rapid measurement tool to assess the effect of tillage on oil contaminated sites RK Douglas, A Fou, AO Egai Engineering and Applied Sciences 4 (6), 135, 2019 | | 2019 |
