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A review of present techniques and methodological advances in analyzing 234Th in aquatic systems

Rutgers van der Loeff, M., Sarin, M.M., Baskaran, M., Benitez-Nelson, C., Buesseler, K.O., Charette, M., Dai, M., Gustafsso, Ö., Masque, P., Morris, P.J., Orlandini, P.J., Rodriguez y Baena, A., Savoye, N., Schmidt, S., Turnewitsch, R., Vöge, I. and Waples, J. (2006) A review of present techniques and methodological advances in analyzing 234Th in aquatic systems Marine Chemistry, 100, (3-4), pp. 190-212. (doi:10.1016/j.marchem.2005.10.012).

Record type: Article


The short-lived thorium isotope 234Th (half-life 24.1 days) has been used as a tracer for a variety of transport processes in aquatic systems. Its use as a tracer of oceanic export via sinking particles has stimulated a rapidly increasing number of studies that require analyses of 234Th in both marine and freshwater systems. The original 234Th method is labor intensive. Thus, there has been a quest for simpler techniques that require smaller sample volumes. Here, we review current methodologies in the collection and analysis of 234Th from the water column, discuss their individual strengths and weaknesses, and provide an outlook on possible further improvements and future challenges. Also included in this review are recommendations on calibration procedures and the production of standard reference materials as well as a flow chart designed to help researchers find the most appropriate 234Th analytical technique for a specific aquatic regime and known sampling constraints.

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Published date: 2006
Keywords: 234Th, methodology, sampling, analytical techniques, export


Local EPrints ID: 41801
ISSN: 0304-4203
PURE UUID: 7fad9ab4-b2d5-4cc2-9863-c215bd940195

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Date deposited: 03 Oct 2006
Last modified: 17 Jul 2017 15:27

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Author: M. Rutgers van der Loeff
Author: M.M. Sarin
Author: M. Baskaran
Author: C. Benitez-Nelson
Author: K.O. Buesseler
Author: M. Charette
Author: M. Dai
Author: Ö. Gustafsso
Author: P. Masque
Author: P.J. Morris
Author: P.J. Orlandini
Author: A. Rodriguez y Baena
Author: N. Savoye
Author: S. Schmidt
Author: R. Turnewitsch
Author: I. Vöge
Author: J. Waples

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