温和提取法评估老化前后土壤中菲的生物有效性  

ASSESSMENT OF PHENANTHRENE BIOAVAILABILITY IN SOILS BEFORE AND AFTER AGING WITH MILD EXTRACTION METHOD

作　　者：张聪恺[1] Muhammad Imran Khan Sardar Alam Cheema 沈超峰[1] 唐先进[1] 申开丽 陈蕾[1] 陈新才[1] 施积炎[1] 陈英旭[1] 

机构地区：[1]浙江大学环境与资源学院环境保护研究所,杭州310029

出　　处：《土壤学报》2011年第1期78-82,共5页Acta Pedologica Sinica

基　　金：浙江省科技计划项目(2007C23037)资助

摘　　要：采用温和溶剂提取方法对不同老化时间土壤中的菲进行提取,研究了正丁醇、二氯甲烷、2-羟丙基-β-环糊精(2-Hydroxypropyl-beta cyclodextrin,HPCD)提取量与生物吸收之间的相关性。结果表明,温和有机溶剂(二氯甲烷、正丁醇)提取与温和HPCD提取法对菲的提取量与蚯蚓蓄积量有很好的相关性(p<0.05)。与其他温和试剂提取相比,温和正丁醇提取可以更好地预测菲在土壤中的生物有效性。In order to explore correlations between biosorption and extraction of phenanthrene in soil with different extractants （acetone, dichloromethane, butanol, ethyl acetate and 2-Hydroxypropyl-beta cyclodextrin, HPCD） , phenanthrene in soils different in aging were extracted with mild solvent extraction methods. A significant relationship was observed between the amount of phenanthrene extracted with mild organic extractants （dichloromethane and butanol） and with mild HPCD and phenanthrene accumulation in earthworms （p 〈 0. 05）. The mild butanol extractant can be used to better predict bioavailability of phenanthrene in both aged and unaged soils as compared to the other mild extractants in the present study.

关 键 词：老化 蓄积 生物有效性 羟丙基-β-环糊精(HPCD) 温和提取 菲 

分 类 号：X53[环境科学与工程—环境工程]