Paired emitter-detector light emitting diodes for the measurement of lead(II) and cadmium(II)

King Tong Lau; Eimear McHugh; Susan Baldwin; Dermot Diamond

doi:10.1016/j.aca.2006.03.073

Paired emitter-detector light emitting diodes for the measurement of lead(II) and cadmium(II)

King Tong Lau^*, Eimear McHugh, Susan Baldwin, Dermot Diamond

^*Corresponding author for this work

Dublin City University

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

A transmittance mode optical device based on using a reverse biased light emitting diode (LED) as light detector has been developed for colorimetric analysis. This new optical device was validated with bromocresol green dye for absorbance measurements before being employed for detecting cadmium(II) and lead(II) in water. Results show that the performance of this LED-based device is comparable to much more expensive bench top UV-vis instruments, but with the advantages of being low cost, low power and simple to operate.

Original language	English
Pages (from-to)	221-226
Number of pages	6
Journal	Analytica Chimica Acta
Volume	569
Issue number	1-2
DOIs	https://doi.org/10.1016/j.aca.2006.03.073
Publication status	Published - 31 May 2006
Externally published	Yes

Keywords

Cadmium(II)
Colorimetric analysis
Environmental monitoring
Lead(II)
Optical sensing
Paired light emitting diode (LED) detector

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10.1016/j.aca.2006.03.073

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title = "Paired emitter-detector light emitting diodes for the measurement of lead(II) and cadmium(II)",

abstract = "A transmittance mode optical device based on using a reverse biased light emitting diode (LED) as light detector has been developed for colorimetric analysis. This new optical device was validated with bromocresol green dye for absorbance measurements before being employed for detecting cadmium(II) and lead(II) in water. Results show that the performance of this LED-based device is comparable to much more expensive bench top UV-vis instruments, but with the advantages of being low cost, low power and simple to operate.",

keywords = "Cadmium(II), Colorimetric analysis, Environmental monitoring, Lead(II), Optical sensing, Paired light emitting diode (LED) detector",

author = "Lau, {King Tong} and Eimear McHugh and Susan Baldwin and Dermot Diamond",

note = "Funding Information: We wish to acknowledge the cooperation of researchers from Mitsubishi Electric Research Laboratories, Cambridge, Boston, MA, in the development of the LED instrumentation. Funding from Science Foundation Ireland (SFI 03/IN3/1361) is gratefully acknowledged.",

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AU - Lau, King Tong

AU - McHugh, Eimear

AU - Baldwin, Susan

AU - Diamond, Dermot

N1 - Funding Information: We wish to acknowledge the cooperation of researchers from Mitsubishi Electric Research Laboratories, Cambridge, Boston, MA, in the development of the LED instrumentation. Funding from Science Foundation Ireland (SFI 03/IN3/1361) is gratefully acknowledged.

PY - 2006/5/31

Y1 - 2006/5/31

N2 - A transmittance mode optical device based on using a reverse biased light emitting diode (LED) as light detector has been developed for colorimetric analysis. This new optical device was validated with bromocresol green dye for absorbance measurements before being employed for detecting cadmium(II) and lead(II) in water. Results show that the performance of this LED-based device is comparable to much more expensive bench top UV-vis instruments, but with the advantages of being low cost, low power and simple to operate.

AB - A transmittance mode optical device based on using a reverse biased light emitting diode (LED) as light detector has been developed for colorimetric analysis. This new optical device was validated with bromocresol green dye for absorbance measurements before being employed for detecting cadmium(II) and lead(II) in water. Results show that the performance of this LED-based device is comparable to much more expensive bench top UV-vis instruments, but with the advantages of being low cost, low power and simple to operate.

KW - Cadmium(II)

KW - Colorimetric analysis

KW - Environmental monitoring

KW - Lead(II)

KW - Optical sensing

KW - Paired light emitting diode (LED) detector

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JF - Analytica Chimica Acta

IS - 1-2

ER -

Paired emitter-detector light emitting diodes for the measurement of lead(II) and cadmium(II)

Abstract

Keywords

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