APARECIDA M.S. MIMURA, MARCONCE A.L. OLIVEIRA
An ultrasound method for simultaneous extraction of Cr, Cu, Zn, Cd, and Pb from sediment, and determination by flame atomic absorption spectrometry (FAAS) and graphite furnace atomic absorption spectrometry (GFAAS) was proposed. The method was standardized using analytical procedure and validated, as determined by FAAS and GFAAS, including selected matrix effects. Recovery ranges from 80.1 to 93.7% (certified reference material) and from 89 to 107% (spike tests). The LOD and LOQ results from the method were consistent with the techniques used (FAAS and GFAAS), with high analytical throughput. The proposed method was then used to determine Cr, Cu, Zn, Cd, and Pb in river sediment samples from Rio Doce, Minas Gerais, Brazil. The results indicated levels below those permitted by Brazilian legislation for all the analytes, with the exception of Cr. This study highlights the importance of monitoring toxic trace metals in sediments due to their potential environmental and health impacts.
@article{fbdb7046-625f-4788-ba97-c3ed08ace70c,
title={Optimization of Ultrasound Assisted Extr},
author={APARECIDA M.S. MIMURA and MARCONCE A.L. OLIVEIRA},
year={2026},
language={en}
}TY - JOUR TI - Optimization of Ultrasound Assisted Extr AU - APARECIDA M.S. MIMURA AU - MARCONCE A.L. OLIVEIRA PY - 2026 LA - en ER -
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