Detection of low-concentration heavy metal ions using optical microfiber sensor

Heavy metal pollution in natural water environment is always a concern in both human and ecosystem health. All current systems available in the market for detecting heavy metal ions have common drawbacks such as bulky size, expensive set-up and costly maintenance. This paper presents an optical micr...

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Published inSensors and actuators. B, Chemical Vol. 237; pp. 142 - 149
Main Authors Ji, Wen Bin, Yap, Stephanie Hui Kit, Panwar, Nishtha, Zhang, Li Ling, Lin, Bo, Yong, Ken Tye, Tjin, Swee Chuan, Ng, Wun Jern, Majid, Maszenan Bin Abdul
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2016
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Abstract Heavy metal pollution in natural water environment is always a concern in both human and ecosystem health. All current systems available in the market for detecting heavy metal ions have common drawbacks such as bulky size, expensive set-up and costly maintenance. This paper presents an optical microfiber sensor functionalized with chelating agent to detect the existence of specific heavy metal ions of low concentration. To the best of our knowledge, coating of chelating agent on silica microfiber of very small diameter (3.9μm) is the first such report. A clear spectral shift was observed when the sensor was immersed into metal ion solution of concentration 10ppb.
AbstractList Heavy metal pollution in natural water environment is always a concern in both human and ecosystem health. All current systems available in the market for detecting heavy metal ions have common drawbacks such as bulky size, expensive set-up and costly maintenance. This paper presents an optical microfiber sensor functionalized with chelating agent to detect the existence of specific heavy metal ions of low concentration. To the best of our knowledge, coating of chelating agent on silica microfiber of very small diameter (3.9 mu m) is the first such report. A clear spectral shift was observed when the sensor was immersed into metal ion solution of concentration 10ppb.
Heavy metal pollution in natural water environment is always a concern in both human and ecosystem health. All current systems available in the market for detecting heavy metal ions have common drawbacks such as bulky size, expensive set-up and costly maintenance. This paper presents an optical microfiber sensor functionalized with chelating agent to detect the existence of specific heavy metal ions of low concentration. To the best of our knowledge, coating of chelating agent on silica microfiber of very small diameter (3.9μm) is the first such report. A clear spectral shift was observed when the sensor was immersed into metal ion solution of concentration 10ppb.
Author Tjin, Swee Chuan
Zhang, Li Ling
Yap, Stephanie Hui Kit
Panwar, Nishtha
Ng, Wun Jern
Yong, Ken Tye
Majid, Maszenan Bin Abdul
Lin, Bo
Ji, Wen Bin
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  givenname: Stephanie Hui Kit
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  givenname: Li Ling
  orcidid: 0000-0003-2895-065X
  surname: Zhang
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Keywords Chelating agent
Microfiber
Non-adiabatic taper
Optical fiber sensor
Interferometric sensor
Heavy metal ion
Language English
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Snippet Heavy metal pollution in natural water environment is always a concern in both human and ecosystem health. All current systems available in the market for...
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SubjectTerms Actuators
Chelating
Chelating agent
Heavy metal ion
Heavy metals
Interferometric sensor
Maintenance
Microfiber
Microfibers
Non-adiabatic taper
Optical fiber sensor
Pollution abatement
Sensors
Spectra
Title Detection of low-concentration heavy metal ions using optical microfiber sensor
URI https://dx.doi.org/10.1016/j.snb.2016.06.053
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