Evaluation of Water Activity in H<sub>2</sub>O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K

Paulazzo, Micaela G.; Passamonti, Francisco Javier

doi:10.1021/acs.jced.7b01126

Cited by 1 publication

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“…The main types of ATPSs include polymer + salt + water, 27 polymer + polymer + water 28 and ionic liquid + organic solvent + water. 29 We have investigated the liquid-liquid equilibria, 30,31 thermodynamic theories 32 and applications [33][34][35] of ATPSs.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

Sun

Zhu

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Fluoroquinolone antibiotics and their metabolites can accumulate in soil and water. Trace amounts of fluoroquinolone antibiotic residues in the environment necessitate the pretreatment of samples prior to analysis. In this work, a polyoxyethylene cetyl ether (POELE20)–NaH2PO4 aqueous two‐phase system (ATPS) was combined with high‐performance liquid chromatography (HPLC) to separate and determine trace quantities of ciprofloxacin (CIP), norfloxacin (NRF) and pefloxacin (PEF) in environmental samples. RESULTS Single‐factor, multi‐factor, reproducibility and accuracy experiments were performed. The extraction efficiencies and enrichment factors for the three antibiotics were above 90 and 13.8%, respectively, under optimal conditions. The recovery efficiency of CIP was 92.08–99.50%, with a relative standard deviation (RSD) of 0.60–6.34%, and the recovery efficiency of NRF and PEF was 93.40–99.30%, with RSD of 0.98–5.16%, when this method was applied to spiked water and soil samples. The RSDs of intra‐ and inter‐day analyses were 1.56–3.42 and 1.33–3.97%, respectively. CONCLUSIONS This study demonstrated that POELE20–NaH2PO4 ATPS coupled with HPLC was suitable for the simultaneous separation, concentration and determination of trace quantities of CIP, NRF and PEF in environmental samples. Moreover, this method can be applied for the determination of trace fluoroquinolone antibiotics in food samples. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

Sun

Zhu

et al. 2019

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

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Evaluation of Water Activity in H₂O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K

Cited by 1 publication

References 20 publications

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

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Evaluation of Water Activity in H2O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K

Cited by 1 publication

References 20 publications

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

Simultaneous separation, concentration and determination of trace fluoroquinolone antibiotics in environmental samples using a polymer aqueous two‐phase system coupled with HPLC

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Evaluation of Water Activity in H₂O–PEG400–PEG6000 Solutions between 318.15 and 348.15 K