Sequential Isolation of Microplastics and Nanoplastics in Environmental Waters by Membrane Filtration, Followed by Cloud-Point Extraction
文献类型：期刊论文
| 作者 | Li, Qing-cun; Lai, Yu-jian; Yu, Su-juan; Li, Peng; Zhou, Xiao-xia; Dong, Li-jie; Liu, Xing; Yao, Zi-wei; Liu, Jing-fu |
| 刊名 | ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2021-03-16 |
| 卷号 | 93期号:10页码:4559-4566 |
| ISSN号 | 0003-2700 |
| 英文摘要 | Respective detection of microplastics (MPs) and nanoplastics (NPs) is of great importance for their different environmental behaviors and toxicities. Using spherical polystyrene (PS) and poly(methyl methacrylate) (PMMA) plastics as models, the efficiency for sequential isolation of MPs and NPs by membrane filtration and cloud-point extraction was evaluated. After filtering through a glass membrane (1 mu m pore size), over 90.7% of MPs were trapped on the membrane, whereas above 93.0% of NPs remained in the filtrate. The collected MPs together with the glass membrane were frozen in liquid nitrogen, ground, and suspended in water (1 mL) and subjected to pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) determination. The NPs in the filtrate were concentrated by cloud-point extraction, heated at 190 degrees C to degrade the extractant, and then determined by Py-GC/MS. For MPs and NPs spiked in pure water, the method detection limits are in the range of 0.05-1.9 mu g/L. The proposed method is applied to analyze four real water samples, with the detection of 1.6-7.6 mu g/L PS MPs and 0.6 mu g/L PMMA MPs in three samples, and spiked recoveries of 75.0-102% for MPs and 67.8-87.2% for NPs. Our method offers a novel sample pretreatment approach for the respective determination of MPs and NPs. |
| WOS研究方向 | Chemistry, Analytical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45832]  |
| 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 |
| 作者单位 | 1.Guangzhou Univ, Sch Environm Sci & Engn, Res Inst Environm Studies Greater Bay, Guangzhou 510006, Peoples R China 2.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China 3.Natl Marine Environm Monitoring Ctr, Dalian 116023, Liaoning, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qing-cun,Lai, Yu-jian,Yu, Su-juan,et al. Sequential Isolation of Microplastics and Nanoplastics in Environmental Waters by Membrane Filtration, Followed by Cloud-Point Extraction[J]. ANALYTICAL CHEMISTRY,2021,93(10):4559-4566. |
| APA | Li, Qing-cun.,Lai, Yu-jian.,Yu, Su-juan.,Li, Peng.,Zhou, Xiao-xia.,...&Liu, Jing-fu.(2021).Sequential Isolation of Microplastics and Nanoplastics in Environmental Waters by Membrane Filtration, Followed by Cloud-Point Extraction.ANALYTICAL CHEMISTRY,93(10),4559-4566. |
| MLA | Li, Qing-cun,et al."Sequential Isolation of Microplastics and Nanoplastics in Environmental Waters by Membrane Filtration, Followed by Cloud-Point Extraction".ANALYTICAL CHEMISTRY 93.10(2021):4559-4566. |
入库方式： OAI收割
来源：生态环境研究中心
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