Publication: Dynamic flow-through approaches for metal fractionation in environmentally relevant solid samples
Issued Date
2005-09-01
Resource Type
ISSN
01659936
Other identifier(s)
2-s2.0-23944458890
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
TrAC - Trends in Analytical Chemistry. Vol.24, No.8 (2005), 759-771
Suggested Citation
Manuel Miró, Elo Harald Hansen, Roongrat Chomchoei, Wolfgang Frenzel Dynamic flow-through approaches for metal fractionation in environmentally relevant solid samples. TrAC - Trends in Analytical Chemistry. Vol.24, No.8 (2005), 759-771. doi:10.1016/j.trac.2005.01.016 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/16433
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Dynamic flow-through approaches for metal fractionation in environmentally relevant solid samples
Abstract
In recent decades, batchwise equilibrium-based single or sequential extraction schemes have been consolidated as analytical tools for fractionation analyses to assess the ecotoxicological significance of metal ions in solid environmental samples. However, taking into account that naturally occurring processes always take place under dynamic conditions, recent trends have been focused on the development of alternative methods aimed at mimicking environmental events more correctly than their classical extraction counterparts. The present review details the state-of-the-art and the fundamental principles of automated, miniaturized strategies for on-line metal fractionation studies in solid substrates based on the concepts of stirring chambers, rotating coiled columns and packed microcartridges, mostly exploiting the attractive features of continuous-flow analysis, and of the first and second generations of flow-injection analysis. Special attention is also paid to a novel, robust, non-invasive approach for on-site continuous sampling of soil solutions, capitalizing on flow-through microdialysis, which presents itself as an appealing complementary approach to the conventional lysimeter experiments. In addition, a critical comparison between the time-resolved analytical information provided by these novel dynamic extraction procedures and that of the traditional schemes is given and thoroughly discussed in the bulk of the text. © 2005 Elsevier Ltd. All rights reserved.