Bingöl, HalukKaykal, FerhatAkgemci, Emine GülerSırıt, Abdulkadir2020-03-262020-03-262010Bingöl, H., Kaykal, F., Akgemci, E. G., Sırıt, A., (2010). Facilitated Transfer of Alkali and Alkaline-Earth Metal Ions by a Calix[4]arene Derivative Across Water/1,2-Dichloroethane Microinterface: Amperometric Detection of Ca2+. Electroanalysis, 22(23), 2825-2833. Doi: 10.1002/elan.2010003451040-03971521-4109https://dx.doi.org/10.1002/elan.201000345https://hdl.handle.net/20.500.12395/24929The host-guest complexation reactions between 5,11,17,23-tetra-tert-butyl-25,27-diethoxycarbonylmethoxy-26,28-dimethoxy calix[4] arene ( BDDC4) and alkali and alkaline-earth metal ions were investigated by facilitated ion transfer processes across water/1,2-dichloroethane microinterface by using steady-state cyclic voltammetry and differential pulse voltammetry. The obtained facilitated transfers for Li+, Na+, K+, Rb+ and Ca2+ were evaluated under the different experimental conditions, at the excess concentrations of metal ions with respect to BDDC4 and vice versa. The association constants having 1 : 1 stoichiometry for Li+, Na+, K+ and Rb+ in 1,2-DCE were determined. Also, we demonstrated that BDDC4 can play an important role for the development of highly selective chemical sensor for Ca2+ among alkaline-metal ions in the concentration range of 0.1-1.0 mM in aqueous solution.en10.1002/elan.201000345info:eu-repo/semantics/openAccessMicro-ITIESSteady-state cyclic voltammetryCalix[4]areneAlkali ionsAlkaline-earth ionsAmperometric sensorArticle222328252833Q2WOS:000285397500010Q2