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Title: An advanced hand-held microfiber-based sensor for ultrasensitive lead ion detection
Authors: Yap, Stephanie Hui Kit
Chien, Yi-Hsin
Tan, Rex
Abdul Rahman Shaik Alauddin
Ji, Wen Bin
Tjin, Swee Chuan
Yong, Ken-Tye
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Yap, S. H. K., Chien, Y.-H., Tan, R., Abdul Rahman Shaik Alauddin, Ji, W. B., Tjin, S. C., & Yong, K.-T. (2018). An advanced hand-held microfiber-based sensor for ultrasensitive lead ion detection. ACS Sensors, 3(12), 2506-2512. doi:10.1021/acssensors.8b01031
Journal: ACS Sensors
Abstract: 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.
ISSN: 2379-3694
DOI: 10.1021/acssensors.8b01031
Rights: © 2018 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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