Measurement of low concentrations of NO2 gas by differential optical absorption spectroscopy method

Abdul Aziz Al-Jalal; Watheq Al-Basheer; Khaled Gasmi; Moch S. Romadhon

doi:10.1016/j.measurement.2019.07.022

Measurement of low concentrations of NO₂ gas by differential optical absorption spectroscopy method

Abdul Aziz Al-Jalal, Watheq Al-Basheer^*, Khaled Gasmi, Moch S. Romadhon

^*Corresponding author for this work

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

31 Scopus citations

Abstract

The availability of inexpensive light emitting diodes (LEDs) makes them an excellent source of light in active Differential Optical Absorption Spectroscopy (DOAS) to measure and monitor trace toxic gases. In this paper, we report the experimental details and outcomes of a new setup developed to detect low concentrations of toxic NO₂ gas based on active DOAS with a white light emitting diode employed as the light source. A detection limit of 0.2 part per million (0.4 mg/m³) is achieved per meter of path length with a total collection time of 5 s. The achieved detection limit makes the developed setup suitable for real-time industrial monitoring of NO₂ emissions at atmospheric pressure.

Original language	English
Pages (from-to)	613-617
Number of pages	5
Journal	Measurement: Journal of the International Measurement Confederation
Volume	146
DOIs	https://doi.org/10.1016/j.measurement.2019.07.022
State	Published - Nov 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

Detection limit
Differential optical absorption spectroscopy
Light emitting diode
Nitrogen dioxide

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

Access to Document

10.1016/j.measurement.2019.07.022

Cite this

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title = "Measurement of low concentrations of NO2 gas by differential optical absorption spectroscopy method",

abstract = "The availability of inexpensive light emitting diodes (LEDs) makes them an excellent source of light in active Differential Optical Absorption Spectroscopy (DOAS) to measure and monitor trace toxic gases. In this paper, we report the experimental details and outcomes of a new setup developed to detect low concentrations of toxic NO2 gas based on active DOAS with a white light emitting diode employed as the light source. A detection limit of 0.2 part per million (0.4 mg/m3) is achieved per meter of path length with a total collection time of 5 s. The achieved detection limit makes the developed setup suitable for real-time industrial monitoring of NO2 emissions at atmospheric pressure.",

keywords = "Detection limit, Differential optical absorption spectroscopy, Light emitting diode, Nitrogen dioxide",

author = "Al-Jalal, \{Abdul Aziz\} and Watheq Al-Basheer and Khaled Gasmi and Romadhon, \{Moch S.\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

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doi = "10.1016/j.measurement.2019.07.022",

language = "English",

volume = "146",

pages = "613--617",

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AU - Al-Jalal, Abdul Aziz

AU - Al-Basheer, Watheq

AU - Gasmi, Khaled

AU - Romadhon, Moch S.

PY - 2019/11

Y1 - 2019/11

N2 - The availability of inexpensive light emitting diodes (LEDs) makes them an excellent source of light in active Differential Optical Absorption Spectroscopy (DOAS) to measure and monitor trace toxic gases. In this paper, we report the experimental details and outcomes of a new setup developed to detect low concentrations of toxic NO2 gas based on active DOAS with a white light emitting diode employed as the light source. A detection limit of 0.2 part per million (0.4 mg/m3) is achieved per meter of path length with a total collection time of 5 s. The achieved detection limit makes the developed setup suitable for real-time industrial monitoring of NO2 emissions at atmospheric pressure.

AB - The availability of inexpensive light emitting diodes (LEDs) makes them an excellent source of light in active Differential Optical Absorption Spectroscopy (DOAS) to measure and monitor trace toxic gases. In this paper, we report the experimental details and outcomes of a new setup developed to detect low concentrations of toxic NO2 gas based on active DOAS with a white light emitting diode employed as the light source. A detection limit of 0.2 part per million (0.4 mg/m3) is achieved per meter of path length with a total collection time of 5 s. The achieved detection limit makes the developed setup suitable for real-time industrial monitoring of NO2 emissions at atmospheric pressure.

KW - Detection limit

KW - Differential optical absorption spectroscopy

KW - Light emitting diode

KW - Nitrogen dioxide

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