Isildak, IbrahimAttar, AzadeDemir, ErsinKemer, BarisAboul-Enein, Hassan Y.2024-05-252024-05-252018151573-41101875-672710.2174/15734110126661610141645462-s2.0-85041511680https://doi.org/10.2174/1573411012666161014164546https://hdl.handle.net/20.500.14517/390Demir, Ersin/0000-0001-9180-0609; isildak, ibrahim/0000-0001-9654-1386; Attar, Azade/0000-0001-6906-6989Aim: A novel all solid-state contact PVC-membrane beryllium-selective electrode based on 4-hydroxybenzo-15-crown-5 ether as an ionophore is described. Results: The best performance was obtained with a membrane composition of 4% ionophore, 67% dioctyl sebacate (DOS), 28% poly(vinyl chloride) (PVC), and 1% potassium tetrakis (p-chloro) phenylborate (KTClPB) (w/w). The all solid-state contact PVCmembrane beryllium-selective electrode together with an Ag/AgCl reference electrode exhibited sub-Nernstian response with a slope of 22 +/- 1 mV/decade to beryllium ions from 1.0x10(-6) to 1.0x10(-1) M, and resulted a considerably low detection limit of 6.2x10(-7). The electrode had a good performance in selectivity over a wide range of interfering cations tested. It showed a working pH range between 4.0-8.2 with fast response time (< 10 s) and a good reproducibility. Conclusion: The all solid-state contact PVC-membrane beryllium-selective electrode developed was successfully applied in potentiometric titration of Be2+ ions with EDTA.eninfo:eu-repo/semantics/closedAccessBeryllium-selective electrode4-hydroxybenzo-15-crown-5 etherpotentiometryPVC membraneionophoreEDTAArticleQ3Q21414348WOS:000419551200007