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A novel, low-cost, high performance dissolved methane sensor for aqueous environments

A novel, low-cost, high performance dissolved methane sensor for aqueous environments
A novel, low-cost, high performance dissolved methane sensor for aqueous environments
A new method for in-situ detection and measurement of dissolved methane in aqueous media/environments with a limit of detection of 0.2 nM (3?, and t90~110s) and range (1-300 nM) is presented. The detection method is based on refractive index (RI) modulation of a modified PolyDiMethylSiloxane (PDMS) layer incorporating molecules of cryptophane-A [1] which have a selective and reversible affinity for methane [2]. The refractive index is accurately determined using surface plasmon resonance (SPR) [3]. A prototype sensor has been repeatedly tested, using a dissolved gas calibration system under a range of temperature and salinity regimes. Laboratory-based results show that the technique is specific, sensitive, and reversible. The method is suitable for miniaturization and incorporation into in situ sensor technology.
1094-4087
12607-12617
Boulart, Cédric
25bfd1e4-0f83-4be8-8a82-6f791b9beb5c
Mowlem, Matthew C.
6f633ca2-298f-48ee-a025-ce52dd62124f
Connelly, Douglas P.
d49131bb-af38-4768-9953-7ae0b43e33c8
Dutasta, Jean-Pierre
cebda9c4-c911-4243-8587-d67b48126ce9
German, Christopher R.
f22a3da1-a8a4-49b6-9813-67c81b0d565c
Boulart, Cédric
25bfd1e4-0f83-4be8-8a82-6f791b9beb5c
Mowlem, Matthew C.
6f633ca2-298f-48ee-a025-ce52dd62124f
Connelly, Douglas P.
d49131bb-af38-4768-9953-7ae0b43e33c8
Dutasta, Jean-Pierre
cebda9c4-c911-4243-8587-d67b48126ce9
German, Christopher R.
f22a3da1-a8a4-49b6-9813-67c81b0d565c

Boulart, Cédric, Mowlem, Matthew C., Connelly, Douglas P., Dutasta, Jean-Pierre and German, Christopher R. (2008) A novel, low-cost, high performance dissolved methane sensor for aqueous environments. Optics Express, 16 (17), 12607-12617. (doi:10.1364/OE.16.012607).

Record type: Article

Abstract

A new method for in-situ detection and measurement of dissolved methane in aqueous media/environments with a limit of detection of 0.2 nM (3?, and t90~110s) and range (1-300 nM) is presented. The detection method is based on refractive index (RI) modulation of a modified PolyDiMethylSiloxane (PDMS) layer incorporating molecules of cryptophane-A [1] which have a selective and reversible affinity for methane [2]. The refractive index is accurately determined using surface plasmon resonance (SPR) [3]. A prototype sensor has been repeatedly tested, using a dissolved gas calibration system under a range of temperature and salinity regimes. Laboratory-based results show that the technique is specific, sensitive, and reversible. The method is suitable for miniaturization and incorporation into in situ sensor technology.

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More information

Submitted date: 29 April 2008
Published date: 6 August 2008

Identifiers

Local EPrints ID: 63485
URI: http://eprints.soton.ac.uk/id/eprint/63485
ISSN: 1094-4087
PURE UUID: e547390a-ce4a-4df0-a02e-3c5383641a8b
ORCID for Matthew C. Mowlem: ORCID iD orcid.org/0000-0001-7613-6121

Catalogue record

Date deposited: 14 Oct 2008
Last modified: 16 Mar 2024 03:08

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Contributors

Author: Cédric Boulart
Author: Matthew C. Mowlem ORCID iD
Author: Douglas P. Connelly
Author: Jean-Pierre Dutasta
Author: Christopher R. German

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