Time-dependent multivariate and spectroscopic characterisation of oil residue in Niger Delta soil.

ABSTRACT: In this paper, we present a detailed evaluation of changes in the oil residue in soil following a spill using weathering indices obtained from analytical instruments such as UV, IR, GC, and ¹H NMR, and chemometrics based on the time of spill in the Niger Delta region of Nigeria. UV, IR and ¹H NMR spectra of eight (8) oil residue samples were analyzed. The PCA of the UV and IR spectrometric index showed that the first two PCs accounted for 87 and 71% of the variance of the index, respectively. The detailed results suggested that the absorption ratios A _225/256 and A _248/278 from UV were good estimators for petroleum of different weathering profiles and the presence of different types of di- and poly-aromatics, nitrogen, sulphur, and

SUBMITTER: Menkiti ND 

PROVIDER: S-EPMC9026327 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature