Application of confocal laser Raman spectroscopy on marine sediment microplastics

作     者：LIU Jing ZHANG Xin DU Zengfeng LUAN Zhendong LI Lianfu XI Shichuan WANG Bing CAO Lei YAN Jun LIU Jing;ZHANG Xin;DU Zengfeng;LUAN Zhendong;LI Lianfu;XI Shichuan;WANG Bing;CAO Lei;YAN Jun

作者机构：Key Laboratory of Marine Geology and Environment&Center of Deep Sea ResearchInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine GeologyPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of SciencesBeijing 100049China Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2020年第38卷第5期

页      面：1502-1516页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：Supported by the Laboratory for Marine Geology,Qingdao Pilot National Laboratory for Marine Science and Technology(No.MGQNLMTD201904) the NSFC-Shandong Joint Fund for Marine Science Research Centers(No.U1606401) the Key Research Program of Frontier Sciences,CAS(No.QYZDB-SSW-DQC004) the Young Taishan Scholars Program(No.tsqn201909158) 

主　　题：microplastics confocal Raman spectroscopy marine sediment 

摘      要：Marine sediment is the primary sink of microplastics and is an indicator of pollution ***,although there are well-developed detection methods,detection is rarely focused on lowmicrometer-sized particles,mainly due to technique *** this study,a simplifi ed process omitting digestion procedures was developed to pretreat microplastics obtained from marine sediment and was coupled with micro-Raman spectroscopy to identify *** on the overall analysis of the characteristic peak assignments,a Raman spectral reference library was constructed for 18 types of *** addition,the eff ects of the measurement parameters were systematically *** research was then conducted to validate the developed process and investigate microplastic contamination in Huiquan Bay,Qingdao,*** simplifi ed process could retain the original appearance of microparticles and accomplish the detection of500μm-sized microplastics in environmental *** in the size range of 10-150μm accounted for 76%of all microplastics,and 56%of the total particles was particles smaller than 50μ***(42%)and polyethylene(20%)were predominant components of the *** particular,polypropylene particles smaller than 10μm were identifi ed in marine *** work demonstrates that Raman spectroscopy is not only an eff ective tool for detecting environmental particles but also highly applicable for identifying particles extracted from marine sediment.