An all-solid-state imprinted polymer-based potentiometric sensor for determination of bisphenol S

Wang, Tiantian; Liang, Rongning; Yin, Tanji; Yao, Ruiqing; Qin, Wei

doi:10.1039/c6ra14461f

Cited by 20 publications

(23 citation statements)

References 33 publications

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“…The amount of 2,4-DCP is estimated from the difference in potential between the baseline values and those at a fixed time (i.e., 100 s). At higher concentrations of DCP, we noticed stronger anionic response due to the more net movements of H + from the membrane to the aqueous phase [28]. The obtained results indicated that the electrodes revealed a potential response which is directly dependent on the concentration of neutral DCP.…”

Section: Resultsmentioning

confidence: 98%

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Single-Piece All-Solid-State Potential Ion-Selective Electrodes Integrated with Molecularly Imprinted Polymers (MIPs) for Neutral 2,4-Dichlorophenol Assessment

et al. 2019

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A novel single-piece all-solid-state ion-selective electrode (SC/ISE) based on carbon-screen printed is introduced. Polyaniline (PANI) is dissolved in a membrane cocktail that contains the same components used for making a conventional ion-selective polyvinyl chloride (PVC) matrix membrane. The membrane, having the PANI, is directly drop-casted on a carbon substrate (screen-printed-carbon electrode). PANI was added to act as an intermediary between the substrate and the membrane for the charge transfer process. Under non-equilibrium sensing mechanism, the sensors revealed high sensitivity towards 2,4-dichlorophenol (DCP) over the linearity range 0.47 to 13 µM and a detection limit 0.13 µm. The selectivity was measured by the modified separate solution method (MSSM) and showed good selectivity towards 2,4-DCP over the most commonly studied ions. All measurements were done in 30 mm Tris buffer solution at a pH 5.0. Using constant-current chronopotentiometry, the potential drift for the proposed electrodes was checked. Improvement in the potential stability of the SPE was observed after the addition of PANI in the sensing membrane as compared to the corresponding coated-wire electrode (membrane without PANI). The applicability of the sensor has been checked by measuring 2,4-DCP in different water samples and the results were compared with the standard HPLC method.

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Section: Resultsmentioning

confidence: 98%

“…These unexpected anionic responses are due to the net movement of H + ions to the aqueous medium coming from the membrane. These H + were induced after the complexation of neutral phenols with the quaternary ammonium salt present in the sensing membrane [20,23,28].…”

Section: Introductionmentioning

confidence: 99%

Single-Piece All-Solid-State Potential Ion-Selective Electrodes Integrated with Molecularly Imprinted Polymers (MIPs) for Neutral 2,4-Dichlorophenol Assessment

et al. 2019

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“…In addition, π–π interaction can occur between the aromatic moiety of the template with either the carboxylic group of MAA or the carbonyl group present in EGDMA. All of these types of interactions improve the binding affinity and specificity of the MIP [ 54 ]. A schematic representation of the imprinting process is shown in Figure 1 .…”

Section: Resultsmentioning

confidence: 99%

All-Solid-State Potentiometric Ion-Sensors Based on Tailored Imprinted Polymers for Pholcodine Determination

et al. 2021

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In recent times, the application of the use of ion-selective electrodes has expanded in the field of pharmaceutical analyses due to their distinction from other sensors in their high selectivity and low cost of measurement, in addition to their high measurement sensitivity. Cost-effective, reliable, and robust all-solid-state potentiometric selective electrodes were designed, characterized, and successfully used for pholcodine determination. The design of the sensor device was based on the use of a screen-printed electrode modified with multiwalled carbon nanotubes (MWCNTs) as a solid-contact transducer. Tailored pholcodine (PHO) molecularly imprinted polymers (MIPs) were prepared, characterized, and used as sensory receptors in the presented potentiometric sensing devices. The sensors exhibited a sensitivity of 31.6 ± 0.5 mV/decade (n = 5, R2 = 0.9980) over the linear range of 5.5 × 10−6 M with a detection limit of 2.5 × 10−7 M. Real serum samples in addition to pharmaceutical formulations containing PHO were analyzed, and the results were compared with those obtained by the conventional standard liquid chromatographic approach. The presented analytical device showed an outstanding efficiency for fast, direct, and low-cost assessment of pholcodine levels in different matrices.

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“…For a traditional ISE, the sensing membrane is usually conditioned with the primary ion and the electrodes are measured under classical equilibrium conditions for the Nernstian sensor response. In our previous work, it has been found that classical potentiometric sensors usually exhibit rather poor responses to ionic bisphenols, 13,28 while electrically neutral phenols and their derivatives could generate strong anionic potential responses on quaternary ammonium salt-doped polymeric membrane potentiometric sensors under near-neutral pH conditions. These unexpected anionic responses can be explained by the net movement of hydrogen ions from the membrane phase to the aqueous phase stimulated by neutral phenols.…”

Section: Potentiometric Detection Of Bpamentioning

confidence: 99%

A paper-based potentiometric sensing platform based on molecularly imprinted nanobeads for determination of bisphenol A

Kamel

Jiang

et al. 2018

Anal. Methods

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An all-solid-state imprinted polymer-based potentiometric sensor for determination of bisphenol S

Abstract: An all-solid-state polymeric membrane potentiometric sensor for sensitive and selective determination of bisphenol S is developed for the first time.

Cited by 20 publications

References 33 publications

Single-Piece All-Solid-State Potential Ion-Selective Electrodes Integrated with Molecularly Imprinted Polymers (MIPs) for Neutral 2,4-Dichlorophenol Assessment

Single-Piece All-Solid-State Potential Ion-Selective Electrodes Integrated with Molecularly Imprinted Polymers (MIPs) for Neutral 2,4-Dichlorophenol Assessment

All-Solid-State Potentiometric Ion-Sensors Based on Tailored Imprinted Polymers for Pholcodine Determination

A paper-based potentiometric sensing platform based on molecularly imprinted nanobeads for determination of bisphenol A

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