Optimization of a in situ sampling technique: Analysis of Cu and Fe in aquatic systems.

Authors
Pizarro, J Rubio, MA Lira, G
Citation
J. Pizarro et al., Optimization of a in situ sampling technique: Analysis of Cu and Fe in aquatic systems., BOL SOC CH, 46(3), 2001, pp. 281-285
Citations number
12
Categorie Soggetti
Chemistry
Journal title
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
ISSN journal
03661644 → ACNP
Volume
46
Issue
3
Year of publication
2001
Pages
281 - 285
Database
ISI
SICI code
0366-1644(200109)46:3<281:OOAISS>2.0.ZU;2-P
Abstract
The improvement of the technique of diffusive gradients in thin layers (DGT ) and the sampling have been tested for Cu and Fe ions in two different sam ples: synthetic (solution) and heterogeneous (sediment-water interface). Bo th analytical determinations showed low relative error and low standard dev iation. Gel preparation, assembly DGT device, thickness diffusive layer (0. 45 mm), time sampling (6 h), time elution (18), and elution factor (Fe: 0.7 9 +/- 0.02; Cu: 0.80 +/- 0.04) were optimized.