【摘要】 本文采用色谱—质谱—质谱—计算机系统技术,分析了长江口外两个表层沉积物中多环芳烃组分,并探讨了其有机质的来源和地球化学特征。更多还原

【Abstract】 The structure type of polycyclic aromatic hydrocarbons of two samples of surficial sediments from Changjiang estuary was studied by using GC-MS-MS computer system. Based on the distribution patterns of methyl phenanthrene, dimethyl phenanthrene, methyl dibenzothiophene, dimethyl dibenzothiophene and benzo ( B) naphtho (2, 1-D) thiophene so on, it is shown that the sediments are mainly composed of recent detritus mixed with older sedimentary organic matters.更多还原