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


Contact
mloeff [ at ] awi-bremerhaven.de

Abstract

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 on sinking particles has stimulated a rapidly increasing number of studies that require analyses of 234Th, both in marine and in freshwater systems. The original 234Th method is labour 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 on the production of standard 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.



Item Type
Article
Authors
Divisions
Programs
Peer revision
Scopus/ISI peer-reviewed
Publication Status
Published
Eprint ID
12439
DOI 10.1016/j.marchem.2005.10.012

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


Share


Citation

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item