Development of PVC membrane potentiometric sensor for the determination of potassium ion and its applications
Omer Isildak, Meliha Burcu Gurdere, Oguz Ozbek, Alper Cetin
article (Uluslararası, Hakemli) | Yazar(lar): Omer Isildak, Meliha Burcu Gurdere, Oguz Ozbek, Alper Cetin | Yıl: 2021 | Dergi/Kurum: PAMUKKALE UNIVERSITY JOURNAL OF ENGINEERING SCIENCES-PAMUKKALE UNIVERSITESI MUHENDISLIK BILIMLERI DERGISI | İndeks: WOS.ESCI | DOI: 10.5505/pajes.2020.27982 | Anahtar Kelimeler: Potassium
In this study, a novel all-solid-state contact poly(vinylchloride) (PVC) membrane potassium selective sensor with a pyrazole derivative molecule as an ionophore has been developed. The potassium selective sensor has a composition of PVC, ionophore, anion excluder (potassium tetrakis (p-chlorophenyl)borat (KTpClPB)) and plasticizer (bis(2-ethylhexyl)adipate (DEHA)) in the ratio of 32.0:4.0:1.0:63.0 (mg). The potassium selective sensor works in a linear concentration range of 1.0x10(-5) to 1.0x10(-1) M with a low detection limit of 6.02 x 10(-6) M The developed potassium selective sensor works in pH range of 6.0-10.0 and has good repeatability, selectivity and a short response time of 10 seconds. Finally, the developed potassium selective sensor was successfully used in the determination of potassium in tap water and a drug sample.