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溢油样品在35—40℃以5000r/min作离心处理除去油中的水,测定样品在指纹区(1720—650cm~(-1)中的红外光谱,取得所选定的谱带的光谱数据,通过计算和比较皮尔逊相关系数来研究溢油样品光谱和可疑油源光谱之间的相似性以作溢油源鉴别。整个过程在计算机控制下进行,利用一个专用的计算机程序来作溢油检索,它可以从众多的可疑油源中找出三个最相似的油源并将它们按其相似程度进行排列,大大简化了鉴别过程,提高了准确度。
Oil spill samples were centrifuged at 5000r / min at 35-40 ° C to remove water from the oil. Infrared spectra of the samples in the fingerprint zone (1720-650 cm -1) were measured to obtain the spectral data of the selected bands , The Pearson correlation coefficient was calculated and compared to study the similarity between the spectrum of oil spill samples and the spectrum of suspected oil sources for oil spill source identification.The whole process was carried out under the control of a computer using a dedicated computer program for oil spills It can find out the three most similar oil sources from many suspicious oil sources and arrange them according to their similarities, which greatly simplifies the identification process and improves the accuracy.