方差分析法分析溢油分散剂对原油指纹的影响

以2种原油和3种溢油分散剂(简称分散剂)的6种原油和分散剂混合物样品为对象,利用方差分析法研究分散剂的种类和相对含量对油指纹(烷烃诊断比)的影响。首先对原始数据进行了单样本非参数K-S检验和Cochran最大方差检验,然后排除掉不适合做方差分析的诊断比值,最后对符合条件的数据进行方差分析。研究发现,有些诊断比不论什么分散剂都会对其产生影响,有一些诊断比,随着分散剂种类的不同,有时影响显著有时影响不显著。这表明本研究中的诊断比都受分散剂的种类和相对含量的影响,溢油指纹鉴定需考虑分散剂的影响。

Effect of oil spill dispersant on the oil fingerprints investigated by variance analysis

6 kinds of crude oil and oil spill dispersant (referred to as dispersant) mixture samples as the research object were obtained by 2 kinds of crude oils and 3 kinds of dispersants in this paper.The effect of the type and the relative content of dispersant on the oil fingerprint (alkanes diagnostic ratio) was investigated by mean of variance analysis.First of all,the raw data was successively tested by one-sample nonparametric Kolmogorov-Smirnov(K-S) test and Cochran maximum variance test.And then the diagnosis ratios not suitable for variance analysis were excluded.Finally,the remaining data meet the requirements was analyzed by mean of variance analysis.This study found that some of the diagnostic ratios were affected by dispersants no matter what they were,and some of the diagnostic ratios were affected significantly or not significantly with different types of dispersants.This indicated that the diagnostic ratios in this study were affected by the type and the relative content of dispersant,and the effect of dispersant should be considered in oil fingerprint identification.