caa a22 4500 463219783 CHVBK 20180405153208.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1134/S1061934807100140 doi (NATIONALLICENCE)springer-10.1134/S1061934807100140 Flow-injection potentiometric determination of clobutinol hydrochloride in pure state and pharmaceutical preparations [Elektronische Daten] [N. Abdel-Ghani, R. El Nashar, S. Hamed] Clobutinol (Cb) ion-selective plastic-membrane electrodes based on ion associates of clobutinolium phosphotungstate (Cb-PTA), clobutinolium phosphomolybdate (Cb-PMA), or a mixture of both Cb-PTA and PMA were prepared. The electrodes were fully characterized in terms of membrane composition, life span, pH, and temperature. The electrodes were applied to the potentiometric determination of clobutinol in pure form and pharmaceutical preparations under batch and flow-injection conditions. Also, conductimetric titrations were applied to the assay of clobutinol in its pure form and pharmaceutical preparations. The selectivity of the electrodes towards a large number of inorganic cations, amino acids, and sugars was tested. The solubility product of ion-associates and the formation constant of the precipitation reactions leading to the ion-associate formation were determined conductimetrically. Pleiades Publishing, Ltd., 2007 Abdel-Ghani N. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut El Nashar R. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut Hamed S. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut Journal of Analytical Chemistry Nauka/Interperiodica 62/10(2007-10-01), 977-986 1061-9348 62:10<977 2007 62 10809 https://doi.org/10.1134/S1061934807100140 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807100140 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abdel-Ghani N. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut NATIONALLICENCE 700 1- El Nashar R. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut NATIONALLICENCE 700 1- Hamed S. Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/10(2007-10-01), 977-986 1061-9348 62:10<977 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer