Properties of ibuprofen ion-selective electrodes based on the ion pair complex of tetraoctylammonium cation |
| |
Authors: | Joanna Lenik Cecylia Wardak |
| |
Institution: | (1) Department of Chemistry, Aligarh Muslim University, Aligarh, 202002 Uttar Pradesh, India;(2) Department of Applied Sciences, Chemistry Section, Higher College of Technology, P.O. Box 74, Al-Khuwair-133, Muscat, Oman |
| |
Abstract: | Ibuprofen membrane electrodes based on different plasticizers: diisobutyl phthalate (DIBP), o-nitrophenyloctyl ether (o-NPOE),
dioctyl sebacate (DOS) and tetraoctylammonium 2-(4-isobutylphenyl)propionate were prepared. All electrodes show: a near Nernstian
slope of characteristic (58.3–60.9 mV decade−1) in the measurement range (10−4–10−1 mol L−1), limit of detection (5.0×10−5 mol L−1), really long lifetime (12 months), dependence of the electrode potential on pH (5.5–9.0), reproducibility of potential (0.6–1.2
mV) and selectivity coefficients in relation to some organic and inorganic anions. The electrodes were applied for the determination
of ibuprofen in tablets by the calibration curve method and the standard addition method.
![MediaObjects/11532_2010_5_Fig1_HTML.jpg](/content/F8L51357532P4541/MediaObjects/11532_2010_5_Fig1_HTML.jpg) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|