Ionic liquids for the passive sampling of sulfonamides from water—applicability and selectivity study

Męczykowska, Hanna; Kobylis, Paulina; Stepnowski, Piotr; Caban, Magda

doi:10.1007/s00216-017-0342-6

Cited by 14 publications

(4 citation statements)

References 41 publications

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“…Furthermore, these compounds have a second dissociation constant, reflecting the ionization of the sulfonamide group, and the presence of anions at a pH higher than 5.9‐8.4, depending on the compound (). The specific dissociation reactions are presented in our previous publication . It can be assumed that the anionic forms of these compounds, which are present at pH 9, are preferentially soluble in water than adsorbed in HLB‐type sorbent.…”

Section: Resultsmentioning

confidence: 99%

“…It was assumed that good wettability and a high pore size had no impact on the pharmaceutical diffusion. In our previous study, the adsorption of pharmaceuticals onto the PES membrane was negligible [20]. The factor which can lower the EE results is the desorption of pharmaceuticals from the HLB sorbent by methanol.…”

Section: The Limitation Of the Study And Comparison With Other Studiesmentioning

confidence: 99%

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Salinity and pH as factors affecting the passive sampling and extraction of pharmaceuticals from water

Lis

Stepnowski

Caban

2019

J of Separation Science

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Passive sampling is an attractive technique for the long‐term monitoring of pharmaceuticals in the water environment. The reliability of the received results depends on the properly performed calibration, namely the determination of analyte sampling rates. This step can be the source of a systematic error, as the sampling rate values are dependent on the water donor phase parameters. This is especially important for pharmaceuticals, since their chemical characteristics and ionic form change with pH. In this study, the cross‐effect of pH (3, 7, and 9) and salinity (0, 7, and 35 practical salinity unit, using artificial sea water) on the passive sampling of 21 pharmaceuticals (antiparasitics, beta‐blockers, non‐steroidal anti‐inflammatory drugs, sulfonamides) was tested. The primarily determined parameter was the sampling rate. In addition, the extraction efficiency, partitioning coefficient, and the concentration of the analytes on the sorbent were calculated. Generally, for the non‐steroidal anti‐inflammatory drugs, beta‐blockers, and antiparasitics, the change both in pH and salinity had a negligible impact on the mentioned experimental parameters. In contrast, the extraction of sulfonamides was impacted by both pH and salinity, while lipophilicity was not a decisive parameter.

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Section: Resultsmentioning

confidence: 99%

Section: The Limitation Of the Study And Comparison With Other Studiesmentioning

confidence: 99%

Salinity and pH as factors affecting the passive sampling and extraction of pharmaceuticals from water

Lis

Stepnowski

Caban

2019

J of Separation Science

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“…The calculated time-weighted average concentration for most analytes was consistent with that obtained from active sampling. The obtained results contributed to the creation of further studies on the development of POCIS-like samplers with ionic liquids (Męczykowska et al 2017b(Męczykowska et al , 2018(Męczykowska et al , 2019.…”

Section: Innovative Sorbentsmentioning

confidence: 77%

Pollutant analysis using passive samplers: principles, sorbents, calibration and applications. A review

2020

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Passive techniques are a constantly evolving method of monitoring water pollution, allowing the simultaneous sampling and concentration of selected chemical compounds. The most popular aqueous passive samplers are those in which sorbents are used as receiving phases, including: the Polar Organic Chemical Integrative Sampler (POCIS). Originally, POCIS contained the copolymer poly(divinylbenzene)-coN -vinylpyrrolidone, which allowed the collection of analytes with 0 ≤ log K ow ≤ 5, The limitation of the use of conventional samplers for sampling water pollutants only with a specific polarity has resulted in the fact that innovative sorbents are used more and more in POCIS-like samplers. In recent years, application of several innovative sorbents in POCIS-like samplers, for example: mixed-mode ion exchange polymeric sorbents, ionic liquids, molecularly imprinted polymers and carbon nanotubes has been described. This is the first review in which the usability of classical and innovative sorbents used in passive techniques principles has been collected and compared, and it has been shown that the type of sorbent can significantly affect the efficiency of sampling pollutants in the aquatic environment. The major points are the following: 1) principle of operation, of passive samplers, 2) characteristics of POCIS and sorbents used as receiving phases, 3) sampler calibration methods and environmental factors affecting their operation, 4) a detailed description of the application possibilities of conventional and innovative sorbents used in POCIS-like samplers. This review shows the growing number of works on the use of innovative sorption materials to overcome limitation of originally designed POCIS, and the published results, allow us to conclude that the type of sorbent may be a key factor in increasing the applicability of POCIS-like samplers.

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“…Tang and his team carried out the extraction of two antibiotic drugs, ciprofloxacin and levofloxacin, using fatty acid/alcohol-based HDESs via the liquid–liquid microextraction method. Both ciprofloxacin and levofloxacin are commonly used as therapeutic and preventative antimicrobial medicines in aquaculture and animal husbandry. , They found that 1-octanol:methyltriooctylammonium chloride (1:1) showed the highest extraction efficiency. In addition, the study demonstrated that when compared to ultrasound, heating, and microwave techniques, the vortex-assisted procedure was the most effective way for extracting ciprofloxacin and levofloxacin.…”

Section: Applications Of Hdessmentioning

confidence: 99%

Hydrophobic Deep Eutectic Solvents as Greener Substitutes for Conventional Extraction Media: Examples and Techniques

et al. 2023

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Deep eutectic solvents (DESs) are multicomponent designer solvents that exist as stable liquids over a wide range of temperatures. Over the last two decades, research has been dedicated to developing noncytotoxic, biodegradable, and biocompatible DESs to replace commercially available toxic organic solvents. However, most of the DESs formulated until now are hydrophilic and disintegrate via dissolution on coming in contact with the aqueous phase. To expand the repertoire of DESs as green solvents, hydrophobic DESs (HDESs) were prepared as an alternative. The hydrophobicity is a consequence of the constituents and can be modified according to the nature of the application. Due to their immiscibility, HDESs induce phase segregation in an aqueous solution and thus can be utilized as an extracting medium for a multitude of compounds. Here, we review literature reporting the usage of HDESs for the extraction of various organic compounds and metal ions from aqueous solutions and absorption of gases like CO 2 . We also discuss the techniques currently employed in the extraction processes. We have delineated the limitations that might reduce the applicability of these solvents and also discussed examples of how DESs behave as reaction media. Our review presents the possibility of HDESs being used as substitutes for conventional organic solvents.

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Ionic liquids for the passive sampling of sulfonamides from water—applicability and selectivity study

Cited by 14 publications

References 41 publications

Salinity and pH as factors affecting the passive sampling and extraction of pharmaceuticals from water

Salinity and pH as factors affecting the passive sampling and extraction of pharmaceuticals from water

Pollutant analysis using passive samplers: principles, sorbents, calibration and applications. A review

Hydrophobic Deep Eutectic Solvents as Greener Substitutes for Conventional Extraction Media: Examples and Techniques

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