Cited by 72Analytical chemistry methods developmentElectrochemical Analysis and ApplicationsPesticide Residue Analysis and Safety

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Determination of cadmium and lead at sub-ppt level in soft drinks: An efficient combination between dispersive liquid-liquid microextraction and graphite furnace atomic absorption spectrometry

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Mandlate, Jaime S., Soares, Bruno M., Seeger, Tassia S., Vecchia, Paula Dalla, Mello, Paola A., Flores, Erico M.M., Duarte, Fabio A.·2017·Food Chemistry

DOI 10.1016/j.foodchem.2016.11.075

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Abstract

A DLLME method for extraction and preconcentration of Cd and Pb from soft drinks and further determination by GF AAS was developed. Important parameters of DLLME such as the type and volume of dispersive and extraction solvents, concentration of DDTC (complexing agent) and pH were evaluated. Better results were obtained using 500μL of acetone for Cd and 700μL of acetonitrile for Pb as dispersive solvents, 60μL of CCl 4 as extraction solvent for both analytes and 500μL of 1.5% DDTC solution. Accuracy was evaluated by recovery assays and ranged from 91 to 113% for Cd and from 95 to 108% for Pb, with RSD below 10 and 7%, respectively. The LODs were 0.006 and 0.072ngL-1 for Cd and Pb, respectively. The optimized method was applied for the determination of Cd and Pb in soft drinks with different brands and flavours.

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Erkek, M., Özgür, E., Deni̇zli̇, A., & Bereli, N. (2026) · IEEE Sensors Journal · doi:10.1109/jsen.2026.3723949

Authors: Mandlate, J. S., Soares, B. M., Seeger, T. S., Vecchia, P. D., Mello, P. A., Flores, E. M. M., & Duarte, F. A.
Affiliations: Universidade Federal do Rio Grande (BR)
Universidade Federal de Santa Maria (BR)
ORCID: Mandlate, Jaime S.
Soares, Bruno M.
Seeger, Tassia S.
Vecchia, Paula Dalla
Mello, Paola A.
Venue: Food Chemistry
Publisher: Elsevier BV
Published: 2017-04
Volume: 221
Pages: 907-912
ISSN: 0308-8146 (ISSN-L)
DOI: 10.1016/j.foodchem.2016.11.075
OpenAlex: W2550175728
Cited by: 72
References: 32
Citations by year: 2026: 5 · 2025: 5 · 2024: 4 · 2023: 4 · 2022: 5 · 2021: 9 · 2020: 11 · 2019: 8 · 2018: 12 · 2017: 8
FWCI: 7.38
Type: journal article
Language: en
Open access: bronze
doi.org
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
www.elsevier.com/legal/tdmrep-license (tdm)
www.elsevier.com/open-access/userlicense/1.0/ (vor, 255 d)
Locations: Food Chemistry (publishedVersion)
PubMed (publishedVersion)
Funders: Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics: Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
Physical Sciences › Chemistry › Electrochemistry › Electrochemical Analysis and Applications
Life Sciences › Agricultural and Biological Sciences › Food Science › Pesticide Residue Analysis and Safety
Keywords: cadmium, lead, soft drinks, dispersive liquid-liquid microextraction, graphite furnace atomic absorption spectrometry, preconcentration, trace metal analysis, food contamination
MeSH terms: Cadmium, Carbonated Beverages, Food Contamination, Graphite, Spectrophotometry, Atomic, Limit of Detection, Liquid Phase Microextraction

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Determination of cadmium and lead at sub-ppt level in soft drinks: An efficient combination between dispersive liquid-liquid microextraction and graphite furnace atomic absorption spectrometry

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