南极布兰斯菲尔德海峡表层沉积物中芳烃化合物

AROMATIC COMPOUNDS IN SURFACE SEDIMENTS FROM BRANSFIELD STRAIT, ANTARCTICA

本文采用气相色谱和三维全扫描荧光光谱研究南极布兰斯菲尔德海峡表层沉积物的芳烃化合物组成和环数分布。沉积物中芳烃化合物包含有萘、菲和芴系化合物，其中菲系化合物含量最高，在１１％～２４％；其次为芴系物，其中硫芴量占芴系物的２４％～６１％。三维全扫描荧光分析表明，南极样的发射波长均集中于３５０～４５０ｎｍ，其中Ｔ４／Ｔ０占５８％～６７％。

The characteristics of components and ring number distribution of fluorescence aromatic compounds were studied by using gaschromatography and three dimension total scanning fluorescence. The aromatic compounds contain homologous series compounds of naphthalene, phenanthrene and fluorene.The amount of phenanthrene series is larger than that of other compounds. The next is fluorene series compounds, of which the dibenzothiophen, alkyl , and dialkyl dibenzothiophen are 24%～61%. The result of three dimension total scanning fluorescence indicates that the emission spectra of samples from Bransfield Strait, Antarctic are 350～450nm, the ratios of T 4/T 0 are 58%～67%, which attributes to the predominance of more than five ring compounds.