Jones, K. C. and Peterson, P. J. and Davies, B. E. (1985) Analysis of silver in freshwaters sample preservation and pre-treatment studies. International Journal of Environmental Analytical Chemistry, 20 (3-4). pp. 247-254. ISSN 0306-7319
Full text not available from this repository.Abstract
Losses of Ag from solution by adsorption on to borosilicate glass and polyethylene sample containers are reported. In distilled water over 80% of a 1μgAgl-1 solution may be adsorbed within 11 days. Acidification to 0.3 M HNO3 satisfactorily preserved samples for this length of time and allowed direct analysis of Ag by graphite furnace atomic absorption spectrometry or pre-concentration by solvent extraction. Filtration through 0.45 μm membranes may bias the dissolved versus suspended partitioning of Ag in freshwaters in favour of the latter, by adsorption of soluble Ag.