Preliminary study of poly(Tetrahydrofurfuryl acrylate) thin film as a potential material of ion selective electrodes: The case of nitrate ion-selective electrode

1Citations
Citations of this article
12Readers
Mendeley users who have this article in their library.

Abstract

A preliminary study on the use of a photocurable poly-tetrahydrofurfuryl acrylate (pTHFA) has been successfully performed as an alternative membrane for application in the Ion-Selective Electrode (ISE) sensors such as Nitrate-ISE. The pTHFA membrane was synthesized using photopolymerization technique and further optimized by varying the concentration of the photo-initiator. The pTHFA photopolymer was characterized by C-NMR, H-NMR, FTIR, and DSC. The best sensing formulation comprising pTHFA photopolymer was obtained from composition II with Tg of-17.3 °C. In the Nitrate-ISE fabrication process, initially, the tetraoctylammonium nitrate (TOAN) ionophore was optimized. The optimum TOAN concentration of 4.2 mg was then immobilized onto composition II as a sensing matrix. Results showed that the pTHFA based ISE sensor exhibited a slope near the Nernstian number with a good linear response for detecting nitrate ion concentration between 10–1 to 10–4 M (r2 = 0.9994) and limit of detection as low as 3.47 × 10–5 M. Furthermore, the selectivity behavior of pTHFA based nitrate-ISE sensor was determined in various types of interfering ions such as SO42–, H2PO4–, HPO42–, Cl– and I–. The sensor has demonstrated selectivity coefficient of-2.27 ± 0.2,-2.49 ± 0.6,-2.18 ± 0.8,-1.31 ± 0.1 and 0.41 ± 0.2, respectively. The fabricated pTHFA ISE-Nitrate sensor was further tested in the fish ponds, soils, and also rivers. The sensors have shown excellent performance and is comparable to the standard method.

Author supplied keywords

Cite

CITATION STYLE

APA

Alva, S., Suherman, R., Friliandita, V., Khaerudini, D. S., Majlan, E. H., & Aziz, A. S. A. (2020). Preliminary study of poly(Tetrahydrofurfuryl acrylate) thin film as a potential material of ion selective electrodes: The case of nitrate ion-selective electrode. Indonesian Journal of Chemistry, 20(3), 645–654. https://doi.org/10.22146/ijc.44478

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free