Environmental Studies and Forestry

Quantitative Raman analysis of microplastics in water using peak area ratios for concentration determination

E. S. Jung, J. H. Choe, et al.

This groundbreaking study unveils an innovative Raman spectroscopy technique for the effective analysis of microplastics in deionized water. Led by Eun Su Jung and colleagues from Chung-Ang University, the research showcases a robust calibration model that ensures high accuracy in detecting pollutants in aquatic ecosystems.

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Abstract

This study introduces a novel Raman spectroscopy-based method for quantitatively and qualitatively analyzing microplastics (MPs) in deionized (DI) water. A calibration model was developed using the peak area ratios of polyethylene (PE) at 1295 cm⁻¹ and polyvinyl chloride (PVC) at 637 cm⁻¹ relative to the broad H₂O peak. The model showed high linearity (R² values of 0.98537 for PE and 0.99511 for PVC) and was validated using mixed PE and PVC samples. Low standard error of calibration (SEC) and relative standard error of calibration (%RSEC) values confirmed the method's accuracy for detecting and quantifying MPs in aquatic environments.

Publisher

npj Clean Water

Published On

Oct 09, 2024

Authors

Eun Su Jung, Jin Hyun Choe, Jin Seok Kim, Da Won Ahn, JinUk Yoo, Tae Min Choi, Sung Gyu Pyo

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