10.6084/m9.figshare.5907862.v1
Marcelo M. Alves
Marcelo M.
Alves
Aline L. Medina
Aline L.
Medina
Ane Martiele T. Pinto
Ane Martiele T.
Pinto
Ana Clara N. Antunes
Ana Clara N.
Antunes
Pedro José Sanches Filho
Pedro José
Sanches Filho
Anderson S. Ribeiro
Anderson S.
Ribeiro
Mariana A. Vieira
Mariana A.
Vieira
Evaluation of the Concentration of Cu, Zn, Pb and Cr in Different Fish Species from the São Gonçalo Channel in Pelotas-RS, Brazil
SciELO journals
2018
fish tissues
acid decomposition
atomic spectrometry
toxic metals
2018-02-21 02:44:17
Dataset
https://scielo.figshare.com/articles/dataset/Evaluation_of_the_Concentration_of_Cu_Zn_Pb_and_Cr_in_Different_Fish_Species_from_the_S_o_Gon_alo_Channel_in_Pelotas-RS_Brazil/5907862
<div><p>The objective of this study was to evaluate the concentration of Cu, Zn, Cr and Pb in different species of fish collected in the estuarine and limnic regions of the São Gonçalo channel, located in the Patos-Mirim lagoon complex in the coastal plain of Rio Grande do Sul State (Southern Brazil) during 2013 (autumn, winter and spring) and 2014 (summer). Fish samples were decomposed in a digester block with a reflux system under conditions optimized using a central composite design as it follows: 250 mg of fish sample, 5 mL HNO3, 2 mL H2O2 during 2 h at 150 °C. The concentrations obtained ranged from 6.7 to 12.0 mg kg -1 for Cu; 1.8 to 23.6 mg kg -1 for Zn; 37 to 487 µg kg -1 for Pb; and 40 to 1268 µg kg -1 for Cr. The highest concentrations of Cu, Zn and Pb, were observed in fishes collected at locations in the estuarine region and Cr showed high levels, especially in the limnic region. The samples of the species Loricariichthys anus (viola) showed the highest concentrations of all analytes investigated.</p></div>