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A Straightforward Method for Copper Determination in Fish Samples via Direct Solid Sample Analysis Line-Source GFAAS

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide This manuscript describes a simple and reliable method for direct solid sample analysis applied for Cu determination in powdered fish samples using line-source graphite furnace atomic absorption spectrometry. Direct solid sample analysis was performed using a laboratory-made device based on glass capillary tubes for sample mass measurement and transportation to the graphite furnace. The pyrolysis and atomization temperatures were optimized; the optimum conditions were achieved at 1100 °C (pyrolysis) and 2400 °C (atomization). External calibration against aqueous solutions proved to be a reliable alternative for Cu quantification in fish samples with good accuracy. The detection and quantification limits for Cu determination in fish tissues were 0.04 ng g –1 and 0.12 ng g –1, respectively. The proposed method revealed good sensitivity while being simple and reliable.

Source: ACS Omega

DOI: 10.1021/acsomega.4c08054

Authors: Matheus Fernandes Filgueiras, Marie Novotná, Michaela Vašinová Galiová, Aderval S. Luna, Jefferson Santos de Gois

Institutions: Universidade do Estado do Rio de Janeiro, Brno University of Technology

Language: English

Topic: Analytical chemistry methods development

Subfield: Analytical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,935