Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles
文献类型：期刊论文
| 作者 | Lai, Yujian; Dong, Lijie; Li, Qingcun; Li, Peng; Hao, Zhineng ; Yu, Sujuan; Liu, Jingfu
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-04-20 |
| 卷号 | 55期号:8页码:4783-4791 |
| 关键词 | nanoplastics particle number concentration Au labeling sp-ICP-MS cloud-point extraction |
| ISSN号 | 0013-936X |
| 英文摘要 | The globally raising concern for nanoplastics (NPs) pollution calls for analytical methods for investigating their occurrence, fates, and effects. Counting NPs with sizes down to 50 nm in real environmental waters remains a great challenge. Herein, we developed a full method from sample pretreatment to quantitative detection for NPs in environmental waters. Various NPs of common plastic types and sizes (50-1200 nm) were successfully labeled by in situ growth of gold nanoparticles and counted by single particle inductively coupled plasma mass spectrometry. Sucrose density gradient centrifugation enables the isolation of gold-labeled NPs from homogeneously nucleated Au nanoparticles, enhancing the particle number detection limit to 4.6 x 10(8) NPs/L for 269 nm spherical polystyrene NPs. For real environmental water samples, the pretreatment of acid digestion with a mixture of 5 mM HNO3 and 40 mM HF eliminates the coexisting inorganic nanoparticles, while the following dual cloud-point extraction efficiently isolates NPs from various matrices and thus improves the Au-labeling efficiency. The high spiked recoveries (72.9%-92.8%) of NPs in different waters demonstrated the applicability of this method in different scenarios. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45693]  |
| 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.Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310024, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lai, Yujian,Dong, Lijie,Li, Qingcun,et al. Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(8):4783-4791. |
| APA | Lai, Yujian.,Dong, Lijie.,Li, Qingcun.,Li, Peng.,Hao, Zhineng.,...&Liu, Jingfu.(2021).Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(8),4783-4791. |
| MLA | Lai, Yujian,et al."Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.8(2021):4783-4791. |
入库方式： OAI收割
来源：生态环境研究中心
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