气—质联用仪和元素分析仪分析沉积物  

GC-MS and EA determination of sediments

作　　者：吴启航[1] 麦碧娴[2] 

机构地区：[1]广州大学环境工程系,广东广州510405 [2]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640

出　　处：《中国测试技术》2005年第1期113-115,共3页CHINA MEASUREMENT & TESTING TECHNOLOGY

基　　金：国家自然科学基金 (40 2 72 12 9) ;广东省自然科学基金 (0 10 5 0 4 )

摘　　要：将珠江广州河段沉积物分为 5个粒度 ,每个粒级的样品进行重液分离 ,收集轻组分和重组分。采用气—质联用仪对其中的多环芳烃 (PAHs)进行定量分析 ,运用元素分析仪测定其中的总有机碳 (TOC)和碳黑 (BC) 。Wet sieving was performed to separate the sediment into five size fractions and further separated into low (<1.8 g/cm^3) and high (>1.8 g/cm^3) density fractions using a cesium chloride solution having a specific gravity of 1.8±0.05 g/cm^3.Each of these size and density fractions were then analyzed for PAHs with GC-MS.And analyzed for TOC and black carbon with EA, The results also show that the PAHs concentration in organic geosorbents is not significantly correlated with the TOC and black carbon content.

关 键 词：多环芳烃(PAHs) 沉积物 

分 类 号：TN915.04[电子电信—通信与信息系统]