Method for detecting nanoplastics in ecosystem using vertical nanogap electrode and Raman spectroscopy

The present invention relates to a method for detecting nano-plastics using a vertical nanogap electrode and a Raman spectroscopy device that captures and concentrates nano-plastics present in water into aggregates of ㎛ size to allow detection of nano-plastics through Raman spectroscopy, thereby ove...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: RYU YONG SANG, YU EUI SANG, JEONG EUI TAE
Format: Patent
Sprache:eng ; kor
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The present invention relates to a method for detecting nano-plastics using a vertical nanogap electrode and a Raman spectroscopy device that captures and concentrates nano-plastics present in water into aggregates of ㎛ size to allow detection of nano-plastics through Raman spectroscopy, thereby overcoming diffusion limitations and diffraction limitations. In the method for detecting nano-plastics using a vertical nanogap electrode and a Raman spectroscopy device according to the present invention, while a vertical nanogap electrode is provided in an underwater environment in which nano-plastics are present, an alternating voltage of a certain frequency is applied to the vertical nanogap electrode to capture and concentrate nano-plastics in a capture part of the vertical nanogap electrode and form an aggregate of nano-plastics having a size of 1 μm or more, and Raman spectroscopy is performed on the nano-plastic aggregate concentrated in the capture part of the vertical nanogap electrode to detect the nano-plastics constituting the nano-plastic aggregate. 본 발명은 수중에 존재하는 나노플라스틱을 ㎛ 크기의 집합체로 포집, 농축시킴으로써 라만분광장치를 통한 나노플라스틱의 검출을 가능하게 하여 확산한계 및 회절한계를 극복할 수 있는 수직나노갭전극 및 라만분광장치를 이용한 나노플라스틱 검출방법에 관한 것으로서, 본 발명에 따른 수직나노갭전극 및 라만분광장치를 이용한 나노플라스틱 검출방법은 나노플라스틱이 존재하는 수중환경에 수직나노갭전극이 구비된 상태에서, 수직나노갭전극에 특정 주파수의 교류전압을 인가하여 수직나노갭전극의 포집부에 나노플라스틱을 포집, 농축시켜 1㎛ 이상의 크기를 갖는 나노플라스틱 집합체를 형성하고, 수직나노갭전극의 포집부에 농축된 나노플라스틱 집합체를 대상으로 라만분광을 실시하여 나노플라스틱 집합체를 구성하는 나노플라스틱을 검출하는 것을 특징으로 한다.