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0.1259 ng/g。估算萘、芴和菲的log Koc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。
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 Koc 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.更多还原
出处
《北京大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2011年第4期735-740,共6页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家重点基础研究发展计划(2007CB815602)
国家水体污染控制与治理科技重大专项(2008ZX07102-001,2008ZX07103-005-01)
克拉玛依指导性科技计划(SK2007-30)资助
关键词
超声提取
底质
半挥发性有机物
ultrasonication extraction
sediment
semivolatile organic pollutant