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Water/SPM distribution of organotins in the secondary tributaries of the Three Gorges Reservoir Area in spring
Gao, Junmin1; Ren, Chunrong1; Zhang, Ke1; Jiang, Wenchao1; Jin, Fen2; Guo, Jinsong1,3
2017
摘要In order to investigate the occurrence and distribution of organotins in water and suspended particulate matters (SPM) in the secondary rivers of the Three Gorges Reservoir Area (TGRA), surface water samples were collected from the Daning River and the Xiaojiang River in March 2013, respectively. Solid-phase micro extraction technique was applied for pretreatment of dissolved samples, and Liquid-liquid and solid-phase extraction technique were applied for pretreatment of SPM. Gas chromatography-mass spectrometry and the internal standard were applied for quantitative determination of the organotins (including tributyltin (TBT), triphenyltin (TPhT) and their metabolites monobutyltin (MBT), dibutyltin (DBT), monophenyltin (MPhT) and diphenyltin (DPhT)) concentrations. The results show that all of the six organotins were detected in the two rivers, but their distribution characteristics in aquatic environment varied significantly. Total organotins concentration was found to be obviously higher in dissolved phase than in SPM. Low-substituted organotins, especially present as MPhT and MBT, were dominant in dissolved phase, but high-substituted butyltins DBT and TBT were abundant on SPM, comparatively. © 2017, Science Press. All right reserved.
DOI10.13671/j.hjkxxb.2016.0362
发表期刊Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae
ISSN02532468
卷号37期号:4页码:1316-1322
语种中文