Speciation Analysis of Labile and Total Silver(I) in Nanosilver Dispersions and Environmental Waters by Hollow Fiber Supported Liquid Membrane Extraction
文献类型：期刊论文
| 作者 | Chao, Jing-Bo; Zhou, Xiao-Xia; Shen, Mo-Hai; Tan, Zhi-Qiang; Liu, Rui; Yu, Su-Juan; Wang, Xiao-Wei; Liu, Jing-Fu |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2015-12-15 |
| 卷号 | 49期号:24页码:14213-14220 |
| 英文摘要 | Hollow fiber supported liquid membrane (HFSLM) extraction was coupled with ICP-MS for speciation analysis of labile Ag(I) and total Ag(I) in dispersions of silver nanoparticles (AgNPs) and environmental waters. Ag(I) in aqueous samples was extracted into the HFSLM of 5%(m/v) tri-n-octylphosphine oxide in n-undecane, and stripped in the acceptor of 10 mM Na2S2O3 and 1 mM Cu(NO3)(2) prepared in 5 mM NaH2PO4-Na2HPO4 buffer (pH 7.5). Negligible depletion and exhaustive extraction were conducted under static and 250 rpm shaking to extract the labile Ag(I) and total Ag(I), respectively. The extraction equilibration was reached in 8 h for both extraction modes. The extraction efficiency and detection limit were (2.97 +/- 0.25)% and 0.1 mu g/L for labile Ag(I), and (82.3 +/- 2.0)% and 0.5 mu g/L for total Ag(I) detection, respectively. The proposed method was applied to determine labile Ag(I) and total Ag(I) in different sized AgNP dispersions and real environmental waters, with spiked recoveries of total Ag(I) in the range of 74.0-98.1%. With the capability of distinguishing labile and total Ag(I), our method offers a new approach for evaluating the bioavailability and understanding the fate and toxicity of AgNPs in aquatic systems. |
| 研究领域[WOS] | Engineering, Environmental ; Environmental Sciences |
| WOS记录号 | WOS:000366872300038 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32668]  |
| 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 | Chao, Jing-Bo,Zhou, Xiao-Xia,Shen, Mo-Hai,et al. Speciation Analysis of Labile and Total Silver(I) in Nanosilver Dispersions and Environmental Waters by Hollow Fiber Supported Liquid Membrane Extraction[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2015,49(24):14213-14220. |
| APA | Chao, Jing-Bo.,Zhou, Xiao-Xia.,Shen, Mo-Hai.,Tan, Zhi-Qiang.,Liu, Rui.,...&Liu, Jing-Fu.(2015).Speciation Analysis of Labile and Total Silver(I) in Nanosilver Dispersions and Environmental Waters by Hollow Fiber Supported Liquid Membrane Extraction.ENVIRONMENTAL SCIENCE & TECHNOLOGY,49(24),14213-14220. |
| MLA | Chao, Jing-Bo,et al."Speciation Analysis of Labile and Total Silver(I) in Nanosilver Dispersions and Environmental Waters by Hollow Fiber Supported Liquid Membrane Extraction".ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.24(2015):14213-14220. |
入库方式： OAI收割
来源：生态环境研究中心
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