An advanced hand-held microfiber-based sensor for ultrasensitive lead ion detection

An advanced hand-held microfiber-based sensor for ultrasensitive lead ion detection

This study demonstrated a l-glutathione-modified nonadiabatic microfiber sensor to detect a trace level of heavy metal ions in aqueous solution. The sensor showed an exclusively selective response to Pb2+ among other metal ions and a measured detection limit of 5 μg/L, lower than the maximum allowab...

Full description

Saved in:
Bibliographic Details
Main Authors: Yap, Stephanie Hui Kit, Chien, Yi-Hsin, Tan, Rex, Abdul Rahman Shaik Alauddin, Ji, Wen Bin, Tjin, Swee Chuan, Yong, Ken-Tye
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Engineering::Electrical and electronic engineering
Microfiber
Heavy Metal Ion Sensor
Online Access:https://hdl.handle.net/10356/139271
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
Description
Summary:This study demonstrated a l-glutathione-modified nonadiabatic microfiber sensor to detect a trace level of heavy metal ions in aqueous solution. The sensor showed an exclusively selective response to Pb2+ among other metal ions and a measured detection limit of 5 μg/L, lower than the maximum allowable limit of Pb2+ in drinking water by the World Health Organization. Moreover, a novel compact all-fiber-based interrogation scheme was proposed to promote the development of a portable hand-held system for on-site measurement. The presented scheme does not require costly and bulky laboratory equipment but operates based on the reflected optical power of two fiber Bragg gratings (FBG), measured using photodetectors independently.

Similar Items