Analytical method for heavy metal determination in algae and turtle eggs from Guanahacabibes Protected Sea Park
| Autor: | Marcelo Maccini, Abel I. Balbin Tamayo, Ana Margarita Esteva Guas, Juan J. Piña Leyte-Vidal |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Cadmium
biology Chemistry Extraction (chemistry) chemistry.chemical_element copper lead Sargasum Natan Chelonia Mydas eggs square-wave anodic stripping biology.organism_classification Square wave anodic stripping voltammetry law.invention Metal Brown algae lcsh:Chemistry Colloid and Surface Chemistry Algae lcsh:QD1-999 law visual_art Environmental chemistry Electrochemistry Materials Chemistry visual_art.visual_art_medium Electroanalytical method Chemical Engineering (miscellaneous) Turtle (robot) |
| Zdroj: | Journal of Electrochemical Science and Engineering, Vol 4, Iss 4 (2014) Journal of Electrochemical Science and Engineering, Vol 4, Iss 4, Pp 145-154 (2014) Journal of Electrochemical Science and Engineering Volume 4 Issue 4 |
| ISSN: | 1847-9286 |
| Popis: | A standard digestion method coupled to electrochemical detection for the monitoring of heavy metals in biological samples has been used for the simultaneous analysis of the target analytes. Square wave anodic stripping voltammetry (SWASV) coupled to disposable screen-printed electrodes (SPEs) was employed as a fast and sensitive electroanalytical method for the detection of heavy metals. The aim of our study was to determine Cd, Pb and Cu by SWASV in brown algae (Sargasum natan) and green turtle eggs (Chelonia mydas) using screen-printed electrodes. The method proved useful for the simultaneous analysis of these metals by comparison between two different procedures for preparing the samples. Two different approaches in digestion protocols were assessed. The study was focused on Guanahacabibes brown algae and green turtle eggs because the metal concentrations recorded in this area may be used for intraspecific comparison within the Guanahacabibes Protected Sea Park area, a body of water for which information is still very scarce. The best results were obtained by digesting biological samples with the EPA 3050B method. This treatment allowed the fast and quantitative extraction from brown algae and green turtle eggs of the target analytes, with high sensitivity and avoiding organic residues, eventually affecting electrochemical measurements. |
| Databáze: | OpenAIRE |
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