Abstract: The semivolatile organic pollutants in sediment of the refinery wastewater reservoir were determinated using ultrasonication extraction combined with GC/MS. The recovery of addition 16 polycyclic aromatic hydrocarbons (PAHs) as standard to soil was measured with range from 65%?94%. The 20 compounds from sediments were identified including 9 PAHs, 5 n-hydrocarbons and 3 phenols et al. Quantitative analysis was achieved with structure similitude as standard samples with range of the concentration of 0.1?259 ng/g. The log K_oc of naphthalene, fluorene and phenanthrene was estimated to be 3.82, 4.27 and 4.22, repectively. The antioxidant 3,5-di-tert-butyl-4-hydroxy-toluene was degraded to 3,5-di-tert-butyl-4-hydroxybenzaldehyde in the refinery wastewater and sediment.

Key words: ultrasonication extraction, sediment, semivolatile organic pollutant

摘要： 采用超声提取结合GC/MS测定了克拉玛依炼油厂污水库底质中的半挥发性有机物。选择16个多环芳烃作为加标物, 测定超声提取法的回收率在65%~94%。从底泥中检出62个色谱峰, 能准确定性20个组分, 主要包括9个多环芳烃、5个正构烷烃和3个酚类化合物。对缺少标准物的组分采用结构相似物进行定量, 浓度范围在0.1~259 ng/g。估算萘、芴和菲的log K_oc分别为3.82, 4.27和4.22。推断3,5-二叔丁基-4-羟基苯甲醛是3,5-二叔丁基-4-羟基甲苯的环境降解产物。

关键词: 超声提取, 底质, 半挥发性有机物