An Ionic Liquid-based Microextraction Method for Ultra-High Preconcentration of Paraquat Traces in Water Samples Prior to HPLC Determination

Hamamoto, Takuya; Katsuta, Shoichi

doi:10.2116/analsci.18p369

Cited by 7 publications

(7 citation statements)

References 26 publications

(23 reference statements)

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“…In LPME very low amount of toxic organic solvents was used during the extraction process [108][109][110][111]. Currently, the LPME pays more attention to green solvents like ionic liquids [112] and SUPRASs to minimize the use of toxic organic solvents during the extraction of targeted analytes. Due to its unique properties, SUPRASs have been used in the extraction field.…”

Section: Suprass-based Lpmementioning

confidence: 99%

Supramolecular solvents: a review of a modern innovation in liquid-phase microextraction technique

2021

Turk J Chem

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Supramolecular solvents (SUPRASs) have rapidly gained more attention as a potential substitute to organic solvents in the sample preparation and pre-concentration process. The essential properties of SUPRAS solvents (e.g., multiple binding sites, different polarity microenvironments, the opportunity to tailor their properties, etc.) these qualities offer numerous opportunities to advance innovative sample preparation and pre-treatment platforms compared to the traditional solvents. Among these qualities, certain importance is placed on theoretical and practical knowledge. That has assisted in making significant developments in SUPRAS that advance our understanding of the processes behind SUPRA'S formation. The SUPRA-solute interactions that drive extractions are explored in this context to develop knowledge-based extraction techniques. This review mainly focused on the significant application of supramolecular-based solvents (SUPRASs) in microextraction techniques.SUPRASs-based liquid-phase microextraction (LPME) is an excellent tool for extracting, simple preparation, and pre-concentration from complex environmental samples. SUPRASs-LPME has a wide range of applications for analysing food, environmental samples, pharmaceuticals, and biological samples.

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Section: Suprass-based Lpmementioning

confidence: 99%

Supramolecular solvents: a review of a modern innovation in liquid-phase microextraction technique

2021

Turk J Chem

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“…[18][19][20][21] However, the commonly used paraquat doses in animal models are too high and they do not represent the dosage rural residents and workers are exposed to. 22 In this context, it is suggested that there are triggering factors like systemic inflammatory diseases that may enhance the paraquat neurotoxicity. 16 Periodontal disease is considered the second most prevalent oral disease, reaching rates of 47.2% in adults and up to 70.1% in elderly.…”

Section: Introductionmentioning

confidence: 99%

“…18 –21 However, the commonly used paraquat doses in animal models are too high and they do not represent the dosage rural residents and workers are exposed to. 22…”

Section: Introductionmentioning

confidence: 99%

Exposure to paraquat associated with periodontal disease causes motor damage and neurochemical changes in rats

et al. 2020

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Exposure to paraquat is possibly involved with the development of several conditions, including neurodegenerative diseases, such as Parkinson’s disease (PD). This condition is mainly characterized by the loss of dopaminergic neurons in the nigrostriatal pathway and the development of classical motor symptoms. Etiology includes exposure to environmental factors, such as the paraquat exposure, and inflammatory diseases may exacerbate paraquat neurotoxicity. The aim of the study was to investigate whether the exposure to paraquat associated with the presence of periodontal disease is able to induce motor and biochemical changes in rats similar to that observed in PD. Adult male Wistar rats were sent to ligature. After 48 h, they were sent to daily treatment paraquat (1 mg/kg/day; 2 mL/kg; intragastric) or vehicle for 4 weeks. Twenty-four hours after the last administration, the open field test was performed. The rats were euthanized and the left hemimandibles and striatum were dissected for the analysis of dopaminergic and inflammatory markers. Only the combination of periodontal disease model plus paraquat exposure induced motor impairments. Remarkably, the paraquat exposure increased the ligature-induced alveolar bone loss in hemimandibles. Moreover, only the combination of periodontal disease and paraquat exposure induced the loss of dopaminergic neurons and astrocyte activation in the striatum.

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“…The important features of LPME are the use of a small volume of extraction solvent, rapid process, and high enrichment factor [26][27][28][29]. Recently, LPME has been focused on green solvents, such as ionic liquid [30], to eliminate the use of toxic solvents.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular Solvent-Based Liquid Phase Microextraction Combined with Ion-Pairing Reversed-Phase HPLC for the Determination of Quats in Vegetable Samples

Hem¹,

Gissawong²,

Srijaranai³

et al. 2019

Toxics

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In this study, we used anion supramolecular solvent (SUPRAS) prepared from a mixture of an anionic surfactant, sodium dodecyl sulfate (SDS), and a cationic surfactant, tetrabutylammonium bromide (TBABr), as the extraction solvent in liquid phase microextraction (LPME) of paraquat (PQ) and diquat (DQ). The enriched PQ and DQ in the SUPRAS phase were simultaneously analyzed by ion-pairing reversed-phase high performance liquid chromatography. PQ and DQ were successfully extracted by LPME via electrostatic interaction between the positive charge of the quats and the negative charge of SUPRAS. PQ, DQ, and ethyl viologen (the internal standard) were separated within 15 min on a C18 column, with the mobile phase containing 1-dodecanesulfonic acid and triethylamine, via UV detection. The optimized conditions for the extraction of 10 mL aqueous solution are 50 μL of SUPRAS prepared from a mixture of SDS and TBABr at a mole ratio of 1:0.5, vortexed for 10 s at 1800 rpm, and centrifugation for 1 min at 3500 rpm. The obtained enrichment factors were 22 and 26 with limits of detection of 1.5 and 2.8 µg L−1 for DQ and PQ, respectively. The precision was good with relative standard deviations less than 3.86%. The proposed method was successfully applied for the determination of PQ and DQ in vegetable samples and recoveries were found in the range of 75.0% to 106.7%.

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An Ionic Liquid-based Microextraction Method for Ultra-High Preconcentration of Paraquat Traces in Water Samples Prior to HPLC Determination

Cited by 7 publications

References 26 publications

Supramolecular solvents: a review of a modern innovation in liquid-phase microextraction technique

Supramolecular solvents: a review of a modern innovation in liquid-phase microextraction technique

Exposure to paraquat associated with periodontal disease causes motor damage and neurochemical changes in rats

Supramolecular Solvent-Based Liquid Phase Microextraction Combined with Ion-Pairing Reversed-Phase HPLC for the Determination of Quats in Vegetable Samples

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