R. K. Douglas

Rapid prediction of total petroleum hydrocarbons concentration in contaminated soil using vis-NIR spectroscopy and regression techniques

R. K. Douglas, Said Nawar, M. Carmen Alamar et al. · The Science of The Total Environment · 2017 · 130 citations · Full text

Agriculture, Earth Sciences, Soil Sciences +10

Evaluation of major factors influencing the geochemistry of groundwater using graphical and multivariate statistical methods in Yenagoa city, Southern Nigeria

K. S. Okiongbo, R. K. Douglas · Applied Water Science · 2014 · 72 citations · Full text

Natural Sciences, Chemistry, Earth Sciences +16

The applicability of spectroscopy methods for estimating potentially toxic elements in soils: state-of-the-art and future trends

Said Nawar, Sabrina Cipullo, R. K. Douglas et al. · Applied Spectroscopy Reviews · 2019 · 59 citations · Full text

Natural Sciences, Earth Sciences, Soil Sciences +17

Evaluation of vis-NIR reflectance spectroscopy sensitivity to weathering for enhanced assessment of oil contaminated soils

R. K. Douglas, Said Nawar, Sabrina Cipullo et al. · The Science of The Total Environment · 2018 · 39 citations · Full text

Natural Sciences, Earth Sciences, Soil Sciences +14

Rapid detection of alkanes and polycyclic aromatic hydrocarbons in oil‐contaminated soil with visible near‐infrared spectroscopy

R. K. Douglas, Said Nawar, M. Carmen Alamar et al. · European Journal of Soil Science · 2018 · 34 citations · Full text

Natural Sciences, Chemistry, Environmental Sciences +17