title: Magnetic solid-phase extraction based on a triethylenetetramine-functionalized magnetic graphene oxide composite for the detection of ten trace phenolic environmental estrogens in environmental water.
abstract: A novel triethylenetetramine-functionalized magnetic graphene oxide composite was prepared and used as a magnetic solid-phase extraction adsorbent for the fast detection of ten trace-level phenolic environmental estrogens in environmental water. The synthesized material was carefully characterized by scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometry, and X-ray photoelectron spectroscopy to confirm the structure and components. The adsorption and desorption conditions of the adsorbent toward phenolic environmental estrogens were optimized in detailed to obtain the best extraction recovery and elution efficiency. Under the optimum conditions, the limits of detection of the method for ten phenolic environmental estrogens were in range of 0.15-1.5 ng/L, which was lower than the reported methods for phenolic environmental estrogens detection in literatures. This could be contributed to the unique structure and property of the as-prepared material. The developed method was successfully applied for the determination of environmental water samples with recoveries ranging from 88.5 to 105.6%.
authors.affiliation: Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang, China.|Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China.
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Chen
authors.affiliation: Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang, China.|Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China.
authors.forename: Sheng-Dong
authors.initials: SD
authors.lastname: Pan
authors.affiliation: Hangzhou Tea Research Institute, China COOP, Hangzhou, China.
authors.forename: Mei-Jun
authors.initials: MJ
authors.lastname: Ye
authors.affiliation: Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang, China.|Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China.
authors.forename: Xiao-Ping
authors.initials: XP
authors.lastname: Li
authors.affiliation: Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang, China.|Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China.
authors.forename: Yong-Gang
authors.initials: YG
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals of Zhejiang Province, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, Zhejiang, China.|Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo, China.
authors.forename: Mi-Cong
authors.initials: MC
authors.lastname: Jin
mesh_terms: D000327:Adsorption; D002851:Chromatography, High Pressure Liquid; D004784:Environmental Monitoring / Q000379:methods; D004785:Environmental Pollutants; D004967:Estrogens / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D057230:Limit of Detection; D008280:Magnetics; D054802:Molecular Imprinting; D010087:Oxides / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D015203:Reproducibility of Results; D012997:Solvents / Q000737:chemistry; D014266:Trientine / Q000737:chemistry*; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry
chemical_list: D004785:Environmental Pollutants; D004967:Estrogens; D010087:Oxides; D011108:Polymers; D012997:Solvents; D014874:Water Pollutants, Chemical; D014867:Water; D019800:Phenol; D006108:Graphite; D014266:Trientine
keywords: Magnetic adsorbents; Magnetic solid-phase extraction; Phenolic environmental estrogens; Trace analysis; Water samples