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首页> 外文期刊>Egyptian journal of petroleum >Chemical fingerprinting and diagnostic ratios of Agbada-1 oil spill impacted sites in Niger Delta, Nigeria
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Chemical fingerprinting and diagnostic ratios of Agbada-1 oil spill impacted sites in Niger Delta, Nigeria

机译：尼日利亚尼日尔三角洲受Agbada-1漏油影响的站点的化学指纹图谱和诊断率

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Detailed compositional analysis by gas chromatography–flame ionization detection (GC–FID) was employed to elucidate an oil spill in the Niger delta by fingerprinting technique. Distribution patterns of normal alkanes and isoprenoids show nC8 to nC40 petroleum hydrocarbons. The diagnostic ratios such as Pr/Ph ranged from 1.52 to 2.17; PrC17 ranged from 0.31 to 0.51; PhC18 ranged from 0.14 to 0.99; nC25C18 ranged from 0.93 to 3.52; CPI ranged from 0.97 to 1.13; (Pr+ nC17)/(Ph+ nC18) ranged from 1.10 to 2.25; Ph/anth ranged from 0.28 to 1.11; BaA/Ch ranged from 0.57 to 2.90; Fl/Py ranged from 1.24 to 2.90. The ratio Fl/Py which is greater than unity (>1) is an indication of the petrogenic source of PAHs. Statistical analyses such as principal component analysis and cluster analysis were also applied as supporting tools. PCA loadings and scores plots carried out on selected parameters obtained from the analysis of the oil spill show that PC1 and PC2 together represented 95.4% (55.8% and 39.6% respectively) of the variability. The high similarity level of the results obtained from the cluster analysis which is 98%, shows that the spilled oil originated from a common source.
机译：通过气相色谱-火焰电离检测（GC-FID）进行详细的成分分析，以通过指纹技术阐明尼日尔三角洲的漏油情况。正常烷烃和类异戊二烯的分布模式显示nC8至nC40石油烃。诊断比率（例如Pr / Ph）在1.52至2.17之间; Pr / nC17为0.31至0.51; Ph / nC18为0.14至0.99; nC25 / nC18介于0.93至3.52之间; CPI从0.97到1.13不等; （Pr + nC17）/（Ph + nC18）的范围为1.10至2.25; Ph /蒽的范围为0.28至1.11; BaA / Ch在0.57至2.90之间; F1 / Py的范围从1.24到2.90。大于1（＞ 1）的比率F1 / Py指示PAHs的岩石来源。统计分析（例如主成分分析和聚类分析）也被用作支持工具。对通过溢油分析获得的选定参数进行的PCA加载和得分图显示，PC1和PC2一起代表了95.4％（分别为55.8％和39.6％）的变异性。聚类分析结果的高度相似度为98％，表明溢油源于一个共同的来源。

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