A Reliable and Straightforward Combination of vortex-assisted Dispersive Magnetic solid-phase Extraction with Direct Sorbent Sampling for Highly Sensitive Silver Determination in Water Samples Using Flame and Metal Furnace AAS.

Autor: Santos DPD; Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, Londrina, PR, 86050-482, Brazil., Ferreira MDP; Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, Londrina, PR, 86050-482, Brazil., Diniz KM; Federal Institute of Parana (IFPR), Campus Irati, Irati, PR, 84507-302, Brazil., Segatelli MG; Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, Londrina, PR, 86050-482, Brazil., Figueiredo EC; Laboratory of Toxicant and Drug Analyses, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, Alfenas, MG, 37130-001, Brazil., Tarley CRT; Department of Chemistry, State University of Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, Londrina, PR, 86050-482, Brazil. ctarleyquim@yahoo.com.br.; National Institute of Science and Technology in Bioanalysis, Department of Analytical Chemistry, State University of Campinas, Campinas, SP, 13083-970, Brazil. ctarleyquim@yahoo.com.br.
Jazyk: angličtina
Zdroj: Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2024 Sep 21; Vol. 113 (4), pp. 42. Date of Electronic Publication: 2024 Sep 21.
DOI: 10.1007/s00128-024-03955-1
Abstrakt: In the present paper, the assessment of vortex-assisted dispersive magnetic solid-phase extraction using amino-functionalized mesoporous combined with direct magnetic sorbent sampling (DMSS) in flame or furnace atomic absorption spectrometry (FAAS or FF-AAS) was demonstrated for highly sensitive silver determination in water samples. The developed method showed significant enrichment factors compared to conventional pneumatic nebulization by FAAS, 607 for DMSS-FF-AAS and 114 for DMSS-FAAS. The analytical curve showed linearity in the range from 5.0 to 70.0 µg L - 1 and 1.0 to 15.0 µg L - 1 and limits of detection of 0.59 and 0.09 µg L - 1 for DMSS-FAAS and DMSS-FF-AAS, respectively. The intra and inter-day precision evaluated as a percentage of the relative standard deviation (RSD,%) ranged from 1.89 to 4.71% for levels of 25.0 and 65.0 µg L - 1 . The method was applied in different kinds of water samples without matrix effects, yielding recovery values from 90 to 110%.
(© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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