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Determination of Parabens in Surface Water from Mogi Guaçu River (São Paulo, Brazil) Using Dispersive Liquid-Liquid Microextraction Based on Low Density Solvent and LC-DAD
Open accessAbstract
A method using dispersive liquid-liquid microextraction (DLLME) based on low density solvent (LDS) combined with liquid chromatography with diode array detection (LC-DAD) has been developed for determination of parabens. Some DLLME parameters such as kind and volumes of extraction and disperser solvents, pH of the aqueous samples, ionic strength, extraction, centrifugation and speed time, were investigated. The method exhibits good linearity (0.9990 to 0.9993), limits of detection (0.5-0.8 µg L-1), and limits of quantification (1.3-2.4 µg L-1). In optimum conditions, enrichment factors and recoveries of studied parabens obtained were 38.9 to 88.4% and 30.3 to 68.0%, respectively. Surface water samples collected from Mogi Guaçu River (São Paulo state, Brazil) were analyzed, showing average contents of methyl-, ethyl-, propyl-, and n-butylparaben of 8.0, 5.8, 13.1 and 15.1 µg L-1, respectively. This is the first study on parabens in a Brazilian River, in a long stretch of river (ca. 300 km of extension).
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Parabens have been previously extracted using DLLME with 1-octanol, decanoic acid, 1-decanol, or chlorobenzene.
“Parabens have been previously extracted using DLLME with 1-octanol [48], decanoic acid [49], 1-decanol [50], or chlorobenzene [51].”
From Automated dispersive liquid-liquid microextraction based on the solidification of the organic phase (2018) · cites this paper as [48]
In comparison with manual DLLME and DLLME-SFO, the reported automated DLLME-SFO approach has comparable LODs.
“In comparison with manual DLLME and DLLME-SFO, the reported approach has comparable LODs.”
From Automated dispersive liquid-liquid microextraction based on the solidification of the organic phase (2018) · cites this paper as [48]
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Ten years of dispersive liquid–liquid microextraction and derived techniques
Campillo, N., Viñas, P., Šandrejová, J., & Andruch, V. (2017) · Applied Spectroscopy Reviews · doi:10.1080/05704928.2016.1224240 · Cited by 102
Automated dispersive liquid-liquid microextraction based on the solidification of the organic phase
Medina, D. A. V., Santos-Neto, Á. J., Cerdà, V., & Maya, F. (2018) · Talanta · doi:10.1016/j.talanta.2018.06.081 · Cited by 55
Metadata
- Authors
- Galinaro, C. A., Pereira, F. M., & Vieira, E. M.
- Affiliations
- Universidade de São Paulo (BR)
- Corresponding author
- Galinaro, Carlos A.
- Venue
- Journal of the Brazilian Chemical Society
- Published
- 2015
- ISSN
- 0103-5053 (ISSN-L)
- OpenAlex
- W2271142046
- Cited by
- 47
- References
- 0
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 7 · 2023: 5 · 2022: 3 · 2021: 11 · 2020: 4 · 2019: 2 · 2018: 4 · 2017: 2 · 2016: 4
- FWCI
- 2.59
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Journal of the Brazilian Chemical Society (publishedVersion, cc-by)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- Americanae (AECID Library) (submittedVersion, other-oa)
- Funders
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Topics
- Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
- Life Sciences › Agricultural and Biological Sciences › Food Science › Pesticide Residue Analysis and Safety
- Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
- Keywords
- parabens, surface water, Mogi-Guaçu River, dispersive liquid-liquid microextraction, methylparaben, ethylparaben, propylparaben, butylparaben, river pollution
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