Organotin compounds in surface sediments from selected fishing ports along the Chinese coast  

作　　者：ZHANG KeGang SHI JianBo HE Bin XU WeiHai LI XiangDong JIANG GuiBin 

机构地区：[1]State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center of Eco-Environmental Sciences,Chinese Academy of Sciences [2]CAS Key Laboratory of Marginal Sea Geology,South China Sea Institute of Oceanology,Chinese Academy of Sciences [3]Department of Civil and Structural Engineering,the Hong Kong Polytechnic University

出　　处：《Chinese Science Bulletin》2013年第2期231-237,共7页

基　　金：supported by the National High Technology Research and Development Program of China(2009BAK61B04);the CAS/SAFEA International Partnership Program for Creative Research Teams(KZCX2-YWT001);the Major Program of the National Natural Science Foundation of China(20890111);the National Natural Science Foundation of China (20977107,40802087)

摘　　要：The concentrations and species of organotin compounds(OTCs) in 52 surface sediment samples from nine fishing ports along the Chinese coast were studied.Butyltins(BTs) and phenyltins(PhTs) were derivatized using sodium tetraethylborate(NaBEt 4) and determined by head-space solid-phase microextraction(HS-SPME) gas chromatography coupled with a flame photometric detector(GC-FPD).The concentrations of OTCs ranged from <3.6 to 194 ng(Sn) g-1 dry weight(dw) for monobutyltin(MBT),<2.3 to 41.5 ng(Sn) g-1 dw for dibutyltin(DBT),<0.7 to 86.0 ng(Sn) g-1 dw for tributyltin(TBT) and <5.1 to 66.1 ng(Sn) g-1 dw for monophenyltin(MPhT),respectively.The concentrations of diphenyltin(DPhT) and triphenyltin(TPhT) were below the limit of detection(LOD).BTs were the main species in the sediments except for the samples collected from Shazikou fishing port in Qingdao.The concentrations of MBT were higher than DBT and TBT.The concentrations of OTCs in the sediments varied widely among different sampling locations.The concentrations of BTs were much higher in the samples collected from fishing ports close to the South China Sea than those in coast of the East China Sea and the Yellow Sea.MPhT was prevalent in most sampling stations except for those in coast of the East China Sea.The environmental and ecotoxicological risks of TBT in most sediment samples were low.The concentrations and species of organotin compounds （OTCs） in 52 surface sediment samples from nine fishing ports along the Chinese coast were studied. Butyltins （BTs） and phenyltins （PlaTs） were derivatized using sodium tetraethylborate （NaBEt4） and determined by head-space solid-phase microextraction （HS-SPME） gas chromatography coupled with a flame photometric detec- tor （GC-FPD）. The concentrations of OTCs ranged from 〈3.6 to 194 ng （Sn） g-i dry weight （dw） for monobutyltin （MBT）, 〈2.3 to 41.5 ng （Sn） g-i dw for dibutyltin （DBT）, 〈0.7 to 86.0 ng （Sn） g-i dw for tributyltin （TBT） and 〈5.1 to 66.1 ng （Sn） g-i dw for monophenyltin （MPhT）, respectively. The concentrations of diphenyltin （DPhT） and triphenyltin （TPhT） were below the limit of detection （LOD）. BTs were the main species in the sediments except for the samples collected from Shazikou fishing port in Qingdao. The concentrations of MBT were higher than DBT and TBT. The concentrations of OTCs in the sediments varied widely among different sampling locations. The concentrations of BTs were much higher in the samples collected from fishing ports close to the South China Sea than those in coast of the East China Sea and the Yellow Sea. MPhT was prevalent in most sampling stations except for those in coast of the East China Sea. The environmental and ecotoxicological risks of TBT in most sediment samples were low.

关 键 词：表层沉积物 有机锡化合物 中国沿海 渔港 火焰光度检测器 顶空固相微萃取 浓度范围 非处方药 

分 类 号：X834[环境科学与工程—环境工程]