Bubble extraction of dissolved gases from groundwater samples

Walsh, KP; Mclaughlan, RG

Bubble extraction of dissolved gases from groundwater samples

Walsh, KP Mclaughlan, RG

Permalink

Publication Type:: Journal Article
Citation:: Water, Air, and Soil Pollution, 1999, 115 (1-4), pp. 525 - 534
Issue Date:: 1999-10-01

Closed Access

	Filename	Description	Size
	2008007445OK.pdf		125.44 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Walsh, KP	en_US
dc.contributor.author	Mclaughlan, RG https://orcid.org/0000-0001-9796-0988	en_US
dc.date.issued	1999-10-01	en_US
dc.identifier.citation	Water, Air, and Soil Pollution, 1999, 115 (1-4), pp. 525 - 534	en_US
dc.identifier.issn	0049-6979	en_US
dc.identifier.uri	http://hdl.handle.net/10453/9358
dc.description.abstract	A technique in described for measuring the concentration of dissolved methane in water samples. A 250 μL bubble is injected into a 5 mL vial to create a headspace. The headspace gas is subsequently analysed by gas chromatograph. The technique requires a headspace equilibrium time of at least 13 hours. The extraction efficiency of the method for methane saturated water was 101.9% ± 1%. The technique is applicable to other dissolved gases in groundwater. The method was used during a comparative evaluation of groundwater sampling devices at a field site. It was found that low flow rate sampling with either a Grundfos electric submersible pump or a peristaltic pump were more precise than using a bailer to measure dissolved methane.	en_US
dc.relation.ispartof	Water, Air, and Soil Pollution	en_US
dc.relation.isbasedon	10.1023/A:1005102925436	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.title	Bubble extraction of dissolved gases from groundwater samples	en_US
dc.type	Journal Article
utslib.citation.volume	1-4	en_US
utslib.citation.volume	115	en_US
utslib.for	090410 Water Treatment Processes	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.issue	1-4	en_US
pubs.publication-status	Published	en_US
pubs.volume	115	en_US

Abstract:

A technique in described for measuring the concentration of dissolved methane in water samples. A 250 μL bubble is injected into a 5 mL vial to create a headspace. The headspace gas is subsequently analysed by gas chromatograph. The technique requires a headspace equilibrium time of at least 13 hours. The extraction efficiency of the method for methane saturated water was 101.9% ± 1%. The technique is applicable to other dissolved gases in groundwater. The method was used during a comparative evaluation of groundwater sampling devices at a field site. It was found that low flow rate sampling with either a Grundfos electric submersible pump or a peristaltic pump were more precise than using a bailer to measure dissolved methane.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/9358