【摘 要】
：
以两种燃料油为研究对象,利用GC/MS分析手段和重复性限比较方法,研究了特征参数比值的筛选识别、相对标准偏差对特征比值筛选的影响以及特征参数比值对峰面积积分相对误差的
【机 构】
：
中国海洋大学环境科学与工程学院,山东青岛,266100
论文部分内容阅读
以两种燃料油为研究对象,利用GC/MS分析手段和重复性限比较方法,研究了特征参数比值的筛选识别、相对标准偏差对特征比值筛选的影响以及特征参数比值对峰面积积分相对误差的响应关系.结果表明:(1)同种燃料油油指纹鉴定特征参数比值的筛选识别结果随着相对标准偏差的变化而变化.在相对标准偏差不变的情况下,不同种类燃料油筛选识别的特征参数比值也不同.(2)本文研究的燃料油中甲基菲指数特征参数比值(MPI1、MPI2)与碳优势指数(CPI)比值较稳定,用于指纹鉴定选择的优先次序MPI1＞MPI2、(C19+ C20)/(C19+ C20+ C21+ C22)＞CPI,当相对标准偏差为1％时,MPI1、CPI仍然适用于指纹的比对鉴定.(3)选用“同族”特征参数比值进行指纹鉴定时,优先使用峰面积相对较大的特征参数比值,可以有效简化特征参数比值的筛选识别过程,从而进一步完善溢油鉴定的方法和程序.
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