title: A high throughout semi-quantification method for screening organic contaminants in river sediments.
abstract: A high throughout semi-quantification method for screening nearly 900 organic contaminants (OCs) in river sediments has been developed. For most OCs tested, concentrations calculated from the proposed semi-quantification method deviated from actual values by a factor of 4. The overall recovery tests indicated that most OCs can be successfully extracted from sediments with recovery rates from 84.1 to 128.6%. To demonstrate the effectiveness of our method towards OC quantification, we screened OCs from sediments collected from the Haihe River basin. Seventy unregulated OCs (including pesticides, flame retardants, PPCPs, etc.) were identified and quantified at concentrations up to 2600 ng/g from 24 sediment samples. From these results, it is confirmed that the developed method is a useful way to fulfill a comprehensive analysis of OCs in sediments and would be valuable for the identification and prioritization of priority pollutants in watershed management.
authors.affiliation: Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, PR China; School of Environment, Tsinghua University, Beijing 100084, PR China. Electronic address: qingweibu@tsinghua.edu.cn.
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Bu
authors.affiliation: Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, PR China. Electronic address: dhwang@rcees.ac.cn.
authors.forename: Donghong
authors.initials: D
authors.lastname: Wang
authors.affiliation: Key Laboratory of Aquatic Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, PR China. Electronic address: meteor0982@163.com.
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, PR China. Electronic address: wangzj@rcees.ac.cn.
authors.forename: Zijian
authors.initials: Z
authors.lastname: Wang
mesh_terms: D002681:China; D016208:Databases, Factual; D004784:Environmental Monitoring / Q000379:methods; D005411:Flame Retardants / Q000032:analysis; D019015:Geologic Sediments / Q000032:analysis*; D009930:Organic Chemicals / Q000032:analysis*; D010575:Pesticides / Q000032:analysis; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D005411:Flame Retardants; D009930:Organic Chemicals; D010575:Pesticides; D014874:Water Pollutants, Chemical
keywords: High throughout screening; Non-target analysis; River sediments; Semi-quantification; Watershed management