title: Note: A dual temperature closed loop batch reactor for determining the partitioning of trace gases within CO2-water systems.
abstract: An experimental approach is presented which can be used to determine partitioning of trace gases within CO2-water systems. The key advantages of this system are (1) The system can be isolated with no external exchange, making it ideal for experiments with conservative tracers. (2) Both phases can be sampled concurrently to give an accurate composition at each phase at any given time. (3) Use of a lower temperature flow loop outside of the reactor removes contamination and facilitates sampling. (4) Rapid equilibration at given pressure/temperature conditions is significantly aided by stirring and circulating the water phase using a magnetic stirrer and high-pressure liquid chromatography pump, respectively.
authors.affiliation: Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, United Kingdom.
authors.forename: Oliver
authors.initials: O
authors.lastname: Warr
authors.affiliation: British Geological Survey, Environmental Science Centre, Nicker Hill, Keyworth, Nottingham NG12 5GG, United Kingdom.
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Rochelle
authors.affiliation: School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, United Kingdom.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Masters
authors.affiliation: Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3AN, United Kingdom.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Ballentine