Publication - Shipboard analysis of picomolar levels of manganese in seawater by chelating resin concentration and chemiluminescence detection
Abstract
A new shipboard analytical method for determining picomolar levels of manganese in seawater has been developed. The method is based on a combination of chelating resin column extraction and improved chemiluminescence (CL) detection in a closed flow system. In this method, manganese in sample solution is selectively collected on newly-developed iminodiacetate-immobilized chelating resin, and then eluted with acidic solution containing hydrogen peroxide. The resulting eluent is mixed with luminol solution and aqueous ammonia after removal of iron ions by a chelating resin column, and then the mixture is introduced into the CL cell. The manganese concentration is obtained from the CL intensity. The detection limit (3SD) of manganese is 5 pmol L−1 from 9 mL of seawater sample. The method was applied to seawater samples collected at the Okinawa Trough.
Authors
Datasets
| Title | Start date | End date |
| Dissolved Mn in the Southern Ocean | 2008-02-11 | 2008-04-13 |
| Dissolved Mn in the Arctic Ocean | 2007-07-28 | 2007-10-07 |
Projects
No projects linked to this publication yetExternal resource
Publication type
Journal Article
Date
2004-01-22
Journal
Analytical and Bioanalytical Chemist
Volume
378
Issue
5
Pages
1288-1293
DOI
Keywords
- Chelating resin concentration
- Chemiluminescence
- Managanese
- Seawater
- Shipboard analysis
