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Arsenic speciation analysis of water in Argentina

Ward, NI, Lord, G, Farnfield, H, O'Reilly, J, Al Rawahi, W, Watts, MJ and Marcilla, AL (2014) Arsenic speciation analysis of water in Argentina One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. pp. 201-203.

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The arsenic speciation analysis of water (surface and ground) was undertaken in thirteen provinces of Argentina. A field-based method utilizing solid phase extraction cartridges enabled the selective retention of iAs III, iAsV, MAV and DMAV. All fractions and a 'total' arsenic acidified sample were analyzed by ICP-MS using a collision cell. Total arsenic levels varied from <0.2 to 6754 μg L -1, with the highest levels in Neuquén (surface) and in Santiago del Estero and La Pampa (ground). The lowest total As levels were found in Misiones and Chubut (surface; <0.2 μg L-1). Speciation levels varied depending on water type, pH and redox potential. In San Juan and Neuquén, the predominant species is iAsIII (surface) whereas in La Pampa (ground) there is variation: Eduardo Castex (iAsIII > iAsV), Ingeniero Luiggi (iAsIII ∼ iAsV), San Martin (iAsIII < iAsV). In Buenos Aires and Santa Fe (ground), the main As species is iAsV. © 2014 Taylor &amp; Francis Group.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Lord, G
Farnfield, H
O'Reilly, J
Al Rawahi, W
Watts, MJ
Marcilla, AL
Date : 1 January 2014
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:28
Last Modified : 24 Jan 2020 23:59

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