Heavy metal concentration in arsenic contaminated groundwater of the Chaco Province, Argentina

Giménez, M. Cecilia; Osicka, Rosa M.; Blanes, Patricia; Morisio, Y; Farías, Silvia

doi:10.1201/b16767-51

Arsenic in the Environment - Proceedings

2014

DOI: 10.1201/b16767-51

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Heavy metal concentration in arsenic contaminated groundwater of the Chaco Province, Argentina

M. Cecilia Giménez¹,

Rosa M. Osicka²,

Patricia Blanes³

et al.

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Field-based application of developed solid phase extraction with inductively coupled plasma mass spectrometry for vanadium speciation analysis of groundwaters from Argentina

Rawahi

Ward

2017

Talanta

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High levels of vanadium have been reported in groundwater (<0.05-5300μgL V) from different parts of Argentina, yet no detailed study of vanadium speciation has been performed. A highly selective strong anion exchange - solid phase extraction (SAX-SPE) method was used (in-situ) for vanadium speciation analysis of groundwater samples from La Pampa - LP (General San Martin and Eduardo Castex) and Buenos Aires - BA (San German) provinces in Argentina. In this method both vanadyl (V) and vanadate (V) were trapped by the complexation with disodium ethylenediaminetetraacetic acid on a pre-conditioned SAX cartridge. In the laboratory, vanadium species were separated at different eluent pH levels. V was eluted at pH 4 using methanol and tetrabutylammonium hydroxide. V was eluted at pH 8 using dihydrogen ammonium phosphate. The eluted species were analysed by inductively coupled plasma mass spectrometry (ICP-MS). This method was validated using an inter-analytical method comparison with HPLC-ICP-MS. A Paired t-test revealed that there was no significant difference (probability, P<0.05) between the two methods. V was found to be predominate species in both sample collection areas (LP: 69 - 100%, BA: ‎33 - 89% of species) over the range of 158.0 - 4748.0μgL in LP and 88.5 - 504.0μgL in BA. V was found at higher levels (29.0-301.0μgL) in Buenos Aires compared to General San Martin groundwater (4.4 - 161.0μgL). The results enhance the potential knowledge of the speciation of vanadium in terms of water quality and human health.

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Field-based application of developed solid phase extraction with inductively coupled plasma mass spectrometry for vanadium speciation analysis of groundwaters from Argentina

Rawahi

Ward

2017

Talanta

View full text Add to dashboard Cite

show abstract

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Heavy metal concentration in arsenic contaminated groundwater of the Chaco Province, Argentina

Cited by 1 publication

References 0 publications

Field-based application of developed solid phase extraction with inductively coupled plasma mass spectrometry for vanadium speciation analysis of groundwaters from Argentina

Field-based application of developed solid phase extraction with inductively coupled plasma mass spectrometry for vanadium speciation analysis of groundwaters from Argentina

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