Challenges in characterization of nanoplastics in the environment  

作　　者：Wen Zhang Qi Wang Hao Chen 

机构地区：[1]John A.Reif,Jr.Department of Civil and Environmental Engineering,New Jersey Institute of Technology,Newark,NJ 07102,USA [2]Department of Chemistry and Environmental Science,New Jersey Institute of Technology,Newark,NJ 07102,USA

出　　处：《Frontiers of Environmental Science & Engineering》2022年第1期141-143,共3页环境科学与工程前沿（英文）

基　　金：This study was supported by the New Jersey Water Resources Research Institute(NJWRRI)Grant(USA)(Project Number:2018NJ399B).

摘　　要：Plastic pollution has been a legacy environment problems and more recently,the plastic particles,especially those ultrafine or small plastics particles,are widely recognized with increasing environmental and ecological impacts.Among small plastics,microplastics are intensively studied,whereas the physicochemical properties,environmental abundance,chemical states,bioavailability and toxicity toward organisms of nanoplastics are inadequately investigated.There are substantial difficulties in separation,visualization and chemical identification of nanoplastics due to their small sizes,relatively low concentrations and interferences from coexisting substances(e.g.,dyes or natural organic matters).Moreover,detection of polymers at nanoscale is largely hampered by the detection limit or sensitivity for existing spectral techniques such as Transformed Infrared Spectroscopy(FTIR)or Raman Spectroscopy.This article critically examined the current state of art techniques that are exclusively reported for nanoplastic characterization in environmental samples.Based on their operation principles,potential applications and limitations of these analytical techniques are carefully analyzed.

关 键 词：Nanoplastics Microplastics Plastic characterization Particle separation 

分 类 号：TB3[一般工业技术—材料科学与工程] X5[环境科学与工程—环境工程]