Zinc(II)-selective PVC membrane potentiometric sensor for analysis of Zn2+ in drug sample and different environmental samples
Yazarlar (3)
Prof. Dr. Ömer IŞILDAK
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Doç. Dr. Oğuz ÖZBEK
Zonguldak Bülent Ecevit Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | International Journal of Environmental Analytical Chemistry |
| Dergi ISSN | 0306-7319 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q3 |
| Makale Dili | İngilizce |
| Basım Tarihi | 11-2021 |
| Cilt No | 101 |
| Sayı | 14 |
| Sayfalar | 2035 / 2045 |
| DOI Numarası | 10.1080/03067319.2019.1691542 |
| Makale Linki | http://dx.doi.org/10.1080/03067319.2019.1691542 |
| Özet |
| In this study, a novel potentiometric sensor that is highly selective to Zn2+ ions is described. A highly selective and sensitive all-solid-state poly(vinyl chloride) membrane Zn2+ sensor, using 7,16-dibenzyl-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane as an ionophore, has been prepared. The best performance was obtained with the sensor having a membrane composition of 4.0% ionophore, 33.0% poly(vinyl chloride), 62.0% Bis(2-ethylhexyl) sebacate (BEHS) and 1.0% potassium tetrakis (p-chlorophenyl) borate (KTpClPB). The sensor exhibits a Nernstian slope of 28.0 ± 2.0 mV/decade in a wide linear concentration range of 1.0 × 10−5 to 1.0 × 10−1 M and detection limit of this sensor is 1.17 × 10−6 M. The developed potentiometric sensor showed a relatively fast response time of 5 s, good reproducibility and stability. The proposed sensor revealed good selectivity over a wide variety of other cations. The working pH range of this sensor is 4.0–11.0. The developed zinc(II)-selective sensor was successfully applied to the direct zinc determination in different water samples and drug sample. The potentiometric results for the drug sample was compared with inductively coupled plasma spectrometry. The proposed zinc(II)-selective electrode can be successfully employed as an indicator electrode in potentiometric titration with EDTA. |
| Anahtar Kelimeler |
| all-solid-state | PVC membrane | sensors | zinc determination |