Bioavailability of organochlorine compounds in aqueous suspensions of fullerene: Evaluated with medaka (Oryzias latipes) and negligible depletion solid-phase microextraction

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Bioavailability of organochlorine compounds in aqueous suspensions of fullerene: Evaluated with medaka (Oryzias latipes) and negligible depletion solid-phase microextraction
	Hu, Xialin; Liu, Jingfu; Zhou, Qunfang; Lu, Shiyan; Liu, Rui; Cui, Lin; Yin, Daqiang; Mayer, Philipp; Jiang, Guibin
刊名	CHEMOSPHERE
	2010-08
卷号	80 期号:7 页码:693-700
关键词	Fullerene suspensions Bioavailability Solid-phase microextraction Organochlorine compounds
中文摘要	The wide application of engineered nanomaterials, such as fullerene (C(60)), will inevitably lead to their release into the aqueous environment, which may alter the bioavailability of organic compounds to aquatic organisms. Negligible depletion solid-phase microextraction (nd-SPME) together with medaka (Oryzias latipes) bioaccumulation were used to study the effects of aqueous suspensions of fullerene (nC(60)) on the bioavailability of eight organochlorine compounds (OCCs) (log K(OW) 3.76-6.96). Freely dissolved concentrations of OCCs decreased by 11.5-88.4% at addition of 5 mg L(-1) nC(60) as indicated by reduced equilibrium concentrations in the SPME fiber coating, the highest reduction being observed for the most hydrophobic OCCs. Medaka bioaccumulation study demonstrated that at the kinetic uptake regime, nC(60) significantly decreased the bioaccumulation of the high hydrophobic OCCs (log K(OW) > 6), but slightly enhanced the bioaccumulation of the less hydrophobic OCCs (log K(OW) < 6). The OCC concentrations in medaka (C(fish)) at the kinetic uptake regime linearly correlated with that in nd-SPME fiber (C(fiber)) without nC(60) (p = 0.007-0.013, R(2) = 0.666-0.723), but this correlation deteriorated with the presence of nC(60) (p = 0.073-0.081, R(2) = 0.423-0.440). These results suggest that in nC(60) the uptake mechanism of OCCs to medaka is different from that to nd-SPME fiber. While only the freely dissolved OCCs are available to nd-SPME fiber, both the freely dissolved and the nC(60) associated OCCs contributed to the accumulation of OCCs to medaka. (C) 2010 Elsevier Ltd. All rights reserved.
WOS记录号	WOS:000280688700003
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21049]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Hu, Xialin,Liu, Jingfu,Zhou, Qunfang,et al. Bioavailability of organochlorine compounds in aqueous suspensions of fullerene: Evaluated with medaka (Oryzias latipes) and negligible depletion solid-phase microextraction[J]. CHEMOSPHERE,2010,80(7):693-700.
APA	Hu, Xialin.,Liu, Jingfu.,Zhou, Qunfang.,Lu, Shiyan.,Liu, Rui.,...&Jiang, Guibin.(2010).Bioavailability of organochlorine compounds in aqueous suspensions of fullerene: Evaluated with medaka (Oryzias latipes) and negligible depletion solid-phase microextraction.CHEMOSPHERE,80(7),693-700.
MLA	Hu, Xialin,et al."Bioavailability of organochlorine compounds in aqueous suspensions of fullerene: Evaluated with medaka (Oryzias latipes) and negligible depletion solid-phase microextraction".CHEMOSPHERE 80.7(2010):693-700.