Application of fractal in identification of marine oil spill with gas chromatography
分形方法在海洋溢油的气相色谱鉴别中的应用研究

The fractal was used in gas chromatography (GC) analysis to identify marine oil spill. In this method, the gas chromatographic curves were decomposed firstly into different scales by wavelet decomposition and then the fractal dimensions of each scale were calculated. At last, the Euclidean distance between the different spilled oil samples, which can reflect the similarity between two samples, were obtained on the basis of fractal dimensions. Therefore, the selection of spilled oil samples became feasible using this method. Comparing the analysis results of two spilled oil events, the results of our method can significantly identify the sample of oil spill. So, the fractal dimensions can show the difference of different chromatographic curves and our method is a supplemental way to reduce the identification range of oil samples, and should be a reliable factor to determine the source of oil spill.