In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments

Lulu Lv¹, Lei He², Shiqi Jiang¹, Jinjun Chen³, Chunxia Zhou⁴, Junhao Qu⁵, Yuqin Lu², Pengzhi Hong⁴, Shengli Sun⁶, Chengyong Li⁷

Affiliations

¹ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
² School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
³ College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China.
⁴ Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
⁵ College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
⁶ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China. Electronic address: sunsl@gdou.edu.cn.
⁷ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China. Electronic address: cyli@gdou.edu.cn.

PMID: 32353796
DOI: 10.1016/j.scitotenv.2020.138449

In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments

Lulu Lv et al. Sci Total Environ. 2020.

. 2020 Aug 1:728:138449.

doi: 10.1016/j.scitotenv.2020.138449. Epub 2020 Apr 20.

Authors

Lulu Lv¹, Lei He², Shiqi Jiang¹, Jinjun Chen³, Chunxia Zhou⁴, Junhao Qu⁵, Yuqin Lu², Pengzhi Hong⁴, Shengli Sun⁶, Chengyong Li⁷

Affiliations

¹ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China.
² School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China.
³ College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China.
⁴ Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
⁵ College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
⁶ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China. Electronic address: sunsl@gdou.edu.cn.
⁷ School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, China; Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang 524088, China. Electronic address: cyli@gdou.edu.cn.

PMID: 32353796
DOI: 10.1016/j.scitotenv.2020.138449

Abstract

The detection of microplastics and nanoplastics in the environment, especially plastic particles in aquatic environments in situ, still faces challenges due to the limitations of current methods, instruments and size of plastic particles. This paper evaluates the potential of surface-enhanced Raman spectroscopy for the analysis of microplastics and nanoplastics. The condition of different tests including the volume ratio of sample to silver colloid, the concentrations of NaCl, and the concentrations of the samples, are assessed for the study of microplastics and nanoplastics (polystyrene (PS), polyethylene (PE) and polypropylene (PP)) in pure water and seawater. A method based on SERS, that uses silver colloid as the active substrate, is developed for the qualitative analysis of microplastics and nanoplastics in aquatic environments. The particle sizes of microplastics and nanoplastics include 100 nm, 500 nm and 10 μm. The Raman signals of microplastics and nanoplastics in pure water and seawater both show good enhancement efficiency. The optimal enhancement factor is 4 × 10⁴. The SERS-based detection method overcomes the limitations of microplastics and nanoplastics in liquids and can detect 100 nm plastics down to 40 μg/mL. It provides more possibility for the rapid detection of microplastics and nanoplastics in aquatic environments in the future.

Keywords: Microplastics; Nanoplastics; Pollutant; Qualitative analysis.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments

Affiliations

In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments

Authors

Affiliations

Abstract

Conflict of interest statement

LinkOut - more resources

Other Literature Sources