Analysis of mercury in shrimp by direct analysis using dma-80 evo atomic absorption spectrometry
Lauren Lima RAMOS- Geísa Vieira Vasconcelos MAGALHÃES
- Wladiana Oliveira MATOS
- Ari Clecius Alves de LIMA
- Patrícia Mendes BARROSO
- Paula Luciana Rodrigues de SOUSA
Published 2023-08-25
Keywords
- Shrimp,
- Mercury,
- Direct mercury analysis,
- Contamination
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
Mercury (Hg) is a highly teratogenic and carcinogenic non-essential metal, classified as a priority pollutant. Hg is present in the environment both naturally and by anthropogenic origin. The objective of this work was to determine Hg in a shrimp sample using thermal composition amalgamation atomic absorption spectrometry (TDA-AAS) by the direct analysis method. In this work, wild (Farfantepenaeus brasiliensis) and farmed (Litopenaeus vannamei) shrimp purchased on the market in northeastern Brazil were considered. The analysis method applied was the U.S. EPA Method 7473 and is described elsewhere in the literature as a proven alternative to these techniques that provided environmentally friendly sample preparation. The wild shrimp tissue presented 75.47 μg kg−1 Hg and was the highest concentration of Hg presented in the work while the lowest concentration of Hg in the work was from the shrimp exoskeleton which presented a concentration of 3.71 μg kg −1 Hg.
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