2026-10-18T23:16:25Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/requestoai:ebyu-rdlopen.rawdatalibrary.net:ebyu/105402026-10-18T20:43:19Zopenairedrivercom_ebyu_10000col_ebyu_10001A novel PVC-membrane potentiometric sensor based on molecularly imprinted polymer for the determination of rhodamine BKanberoglu, Gulsah SaydanKaya, NurcanColdur, FatihHashemi-Moghaddam, HamidSoylak, MustafaMolecularly imprinted polymerPotentiometric determinationPVC membrane electrodeRhodamine B determinationSelective electrodeAtom transfer radical polymerizationChemical sensorsFree radicalsMembranesPolymer membrane electrodesPotassium compoundsPotentiometers (electric measuring instruments)Potentiometric sensorsRhodamine BRhodium compoundsVoltammetryFunctionalsPoly (vinyl chloride) membranePoly(vinyl chloride) membrane electrodePotentiometricsRhodamine-BSelective electrodesSynthesisedPolyvinyl chloridesA rhodamine B (RH-B)-imprinted functional polymer was synthesized by free radical polymerization, utilizing RH-B as the template, methacrylic acid as the functional monomer, and ethyleneglycol dimethylacrylate as the cross-linker. The synthesized RH-B-imprinted polymer was characterized by FT-IR measurements. A novel RH-B-selective potentiometric poly(vinyl chloride) (PVC) membrane sensor was fabricated using this newly synthesized RH-B-imprinted functional polymer as the ionophore. Membrane optimization studies revealed that the most satisfactory membrane composition, yielding the best potentiometric parameters, comprised 32.0% (w/w) PVC, 64.0% (w/w) dibutyl phthalate, 3.0% (w/w) RH-B-imprinted polymer, and 1.0% (w/w) potassium tetrakis(4-chlorophenyl)borate. Further investigations into the potentiometric performance characteristics of the optimum composition demonstrated that the sensor exhibited a linear response to RH-B within the concentration range of 1.0 × 10–7 to 1.0 × 10–2 M with a detection limit of 1.0 × 10–8 M and a near Nernstian slope of 67.37 mV/decade. The sensor’s analytical proficiency was evidenced by its precise quantification of RH-B in RH-B-spiked rose-water samples, resulting in satisfactory recovery rates. © Springer-Verlag GmbH Austria, part of Springer Nature 2025.Springer2026Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/10540https://doi.org/10.1007/s00706-025-03404-70026-9247enMonatshefte fur Chemieinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/10540