| Application of confocal laser Raman spectroscopy on marine sediment microplastics | |
Liu Jing1,2,4,5; Zhang Xin1,2,3,4,5; Du Zengfeng1,2,5; Luan Zhendong1,2,5; Li Lianfu1,2,4,5 ; Xi Shichuan1,2,4,5; Wang Bing1,2,5; Cao Lei1,2,5; Yan Jun1,2,5
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| 2020-09-01 | |
| 发表期刊 | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
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| ISSN | 2096-5508 |
| 卷号 | 38期号:5页码:1502-1516 |
| 通讯作者 | Zhang Xin(xzhang@qdio.ac.cn) |
| 摘要 | Marine sediment is the primary sink of microplastics and is an indicator of pollution levels. However, although there are well-developed detection methods, detection is rarely focused on low-micrometer-sized particles, mainly due to technique limitations. In this study, a simplified process omitting digestion procedures was developed to pretreat microplastics obtained from marine sediment and was coupled with micro-Raman spectroscopy to identify microplastics. Based on the overall analysis of the characteristic peak assignments, a Raman spectral reference library was constructed for 18 types of plastic. In addition, the effects of the measurement parameters were systematically described. Field research was then conducted to validate the developed process and investigate microplastic contamination in Huiquan Bay, Qingdao, China. This simplified process could retain the original appearance of microparticles and accomplish the detection of <500 mu m-sized microplastics in environmental samples. Microplastics in the size range of 10-150 mu m accounted for 76% of all microplastics, and 56% of the total particles was particles smaller than 50 mu m. Polypropylene (42%) and polyethylene (20%) were predominant components of the particles. In particular, polypropylene particles smaller than 10 mu m were identified in marine sediment. This work demonstrates that Raman spectroscopy is not only an effective tool for detecting environmental particles but also highly applicable for identifying particles extracted from marine sediment. |
| 关键词 | microplastics confocal Raman spectroscopy marine sediment |
| DOI | 10.1007/s00343-020-0129-z |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Limnology ; Oceanography |
| WOS记录号 | WOS:000584398800013 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/169097 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Zhang Xin |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266237, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Liu Jing,Zhang Xin,Du Zengfeng,et al. Application of confocal laser Raman spectroscopy on marine sediment microplastics[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2020,38(5):1502-1516. |
| APA | Liu Jing.,Zhang Xin.,Du Zengfeng.,Luan Zhendong.,Li Lianfu.,...&Yan Jun.(2020).Application of confocal laser Raman spectroscopy on marine sediment microplastics.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,38(5),1502-1516. |
| MLA | Liu Jing,et al."Application of confocal laser Raman spectroscopy on marine sediment microplastics".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 38.5(2020):1502-1516. |
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