da Cunha L C, Serve L, Gadel F, Blazi J L
Centre de Formation et Recherche sur l'Environnement Marin, Université de Perpignan, France.
Sci Total Environ. 2000 Jul 10;256(2-3):191-204. doi: 10.1016/s0048-9697(00)00492-7.
Particulate matter samples were collected in the mountainous section and river mouth at the Tech River basin, south France, during flood (December 1996) and summer (September 1997) periods. Suspended material was analysed by pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) and 23 identified pyrolysis products were divided into five main fractions: aminosugars, aromatic hydrocarbons, polysaccharides, phenols and nitrogenous compounds. Analysis of relative amounts of these fractions revealed neither significant spatial nor temporal changes in the particulate organic matter composition. Nevertheless, their specific composition showed that during flooding there is a certain homogeneity in the composition of the riverine particulate organic matter, with more degraded material of pedogenic (allochthonous) character, and during the summer the results suggest the presence of two components, allochthonous and autochthonous.
在法国南部泰克河流域的山区和河口，于洪水期（1996年12月）和夏季（1997年9月）采集了颗粒物样本。通过热解气相色谱 - 质谱联用仪（Py - GC - MS）对悬浮物质进行分析，鉴定出的23种热解产物被分为五个主要部分：氨基糖、芳烃、多糖、酚类和含氮化合物。对这些部分相对含量的分析表明，颗粒有机物组成在空间和时间上均无显著变化。然而，其具体组成表明，洪水期间河流颗粒有机物组成具有一定的同质性，含有更多成土（外源）特征的降解物质，而夏季结果表明存在两种成分，即外源和内源成分。
