Simultaneous concentration and chromatographic detection of water pesticides traces using aqueous two-phase system composed of tetrahydrofuran and fructose

Buarque, Filipe Smith; Soares, Cleide Mara Faria; Marques, Maria Nogueira; Miranda, Rita de Cássia Mendonça de; Cavalcanti, Eliane Bezerra; Souza, Ranyere Lucena de; Lima, Álvaro Silva

doi:10.1016/j.microc.2019.03.033

Cited by 22 publications

(14 citation statements)

References 37 publications

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“…(2012) and Buarque et al. (2019) identified a concentration of diuron herbicide near 500 and 1900 ng L −1 of diuron, respectively.…”

Section: Resultsmentioning

confidence: 97%

“…Buarque et al. (2019) presented a cost comparison study between SPE and THF‐based ATPS. The price of the SPE technique for the preconcentration of a water sample was US$ 4.68, whereas the price of the ATPS was US$ 0.20.…”

Section: Resultsmentioning

confidence: 99%

“…The conceptual process diagram proposed comprises a number of steps. THF presents a lower boiling temperature, which can be separated, applying controlled evaporation, and thus leading to the atrazine isolation and THF recycling and reuse (Buarque et al., 2019). Glycerol can be separated from the real water sample by precipitation with alcohol through the salting‐out effect.…”

Section: Resultsmentioning

confidence: 99%

“…Although widely studied in the past decades, conventional polymer‐based ATPS display a high viscosity, which hinders the mass transfer and the phase separation; and they have a limited polarity range between the two phases (Freire, 2016). Therefore, these systems have restricted applicability, leading to the development of new systems formed by different constituents such as ionic liquids (Gutowski et al., 2003), organic solvents, for example, alcohols (Tan et al., 2014), acetonitrile (Buarque et al., 2020), and tetrahydrofuran (THF; Buarque et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Buarque et al. (2019) reported the application of ATPS formed by THF and commercial fructose to give an up to 200‐fold preconcentration for diuron herbicide from the water sample.…”

Section: Introductionmentioning

confidence: 99%

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Preconcentration and chromatographic detection of atrazine in real water sample using aqueous two‐phase system based on tetrahydrofuran and glycerol

Buarque

Lima

Soares

et al. 2021

Environmental Quality Mgmt

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Environmental contamination by atrazine leads to serious environmental impact. The low concentrations of atrazine in aqueous media render its identification and quantification difficult. In this context, aqueous two‐phase systems based on tetrahydrofuran (THF) + glycerol were tested as simultaneous recovery and preconcentration platforms of atrazine from real water samples. The phase diagrams were determined, and it was reported that the phase separation ability largely depends on the number of hydroxyl groups present in each polyol. Posteriorly, the atrazine was partitioned to the THF‐rich phase and presented recovery values between 70.9 (KATZ = 2.9) and 96.5% (KATZ = 15.2). The computational predictive method (COSMO‐RS) was used, aiming to confirm the atrazine partitioning for the THF‐rich phase. In addition, a 250‐fold preconcentration factor was achieved using a mixture point of 3.27 wt% of THF + 93.98 wt% of glycerol + 2.75 wt% of real water sample. This preconcentration factor and subsequent use of UFLC‐TOF permitted the identification and quantification of atrazine in real samples of water collected in the hydrographic basin from the Japaratuba River, in the state of Sergipe, Brazil. The protocol presented values of 95‒2400 ng L−1 of atrazine with a limit of detection of 50 ng L−1.

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“…(2012) and Buarque et al. (2019) identified a concentration of diuron herbicide near 500 and 1900 ng L −1 of diuron, respectively.…”

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Buarque et al. (2019) reported the application of ATPS formed by THF and commercial fructose to give an up to 200‐fold preconcentration for diuron herbicide from the water sample.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Preconcentration and chromatographic detection of atrazine in real water sample using aqueous two‐phase system based on tetrahydrofuran and glycerol

Buarque

Lima

Soares

et al. 2021

Environmental Quality Mgmt

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Hormones Concentration in an Aqueous Two‐Phase System: Experimental and Computational Analysis

Buarque,

Lima,

Carniel

et al. 2024

Chem Eng & Technol

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Estrogens are emergent pollutants found in low levels in water bodies, and for this reason they require concentration for quantification. In this study, aqueous two‐phase systems (ATPSs) were used as an alternative strategy to improve hormone detection and quantification from real water samples. In addition, a predictive computational method (COSMO‐RS) was used to understand better the migration of hormones between the two phases at the molecular level. Water samples previously analyzed as hormone‐free were added to the 250‐fold concentrated ATPS, where it was possible to detect and quantify concentrations of these micropollutants in the range of 9.3–29.19 ng L−1.

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Aqueous two‐phase systems in Latin America: perspective and future trends

Picó

Lima

Mussagy

et al. 2021

J of Chemical Tech & Biotech

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Aqueous two‐phase systems (ATPS) have been demonstrated to be a simple and robust worldwide applied bioprocessing technology. From high value microscopic to macroscopic biological molecules obtained from a wide broad of matrices, ATPS have shown a high efficiency capacity for their concentration, enrichment, recovery, and purification. Particularly in Latin America, four relevant countries have paved the way and played important leading roles in this transformation history. This perspective article aims to present a critical analysis of the practical evolution of the main implementations of ATPS in Argentina, Brazil, Chile, and Mexico. Special attention is given to novel applications of this biphasic bioprocess that are being explored to accomplish visionary therapeutic tasks for the healthcare, biotechnology, and pharmaceutical sectors, as well as other environmental purposes. © 2021 Society of Chemical Industry (SCI).

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Simultaneous concentration and chromatographic detection of water pesticides traces using aqueous two-phase system composed of tetrahydrofuran and fructose

Cited by 22 publications

References 37 publications

Preconcentration and chromatographic detection of atrazine in real water sample using aqueous two‐phase system based on tetrahydrofuran and glycerol

Preconcentration and chromatographic detection of atrazine in real water sample using aqueous two‐phase system based on tetrahydrofuran and glycerol

Hormones Concentration in an Aqueous Two‐Phase System: Experimental and Computational Analysis

Aqueous two‐phase systems in Latin America: perspective and future trends

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