Determination of cerium(III) ions in soil and sediment samples by Ce(III) PVC-based membrane electrode based on 2,5-dioxo-4-imidazolidinyl

Determination of Ytterbium(III) Ions in Soil and Sediment Samples by a New Polymeric Yb3+-PVC Membrane Sensor

“…Recently, a number of sensors for lanthanide group elements have been reported (Zamani, Ganjali, Norouzi, Tadjarodi, and Shahsavani 2008;Ganjali, Pourjavid, et al 2003;Chowdhury, Ogata, and Kamata 1996;Ogata et al 1995;Shamsipur et al 2003;Zamani, Ganjali, Norouzi, and Meghdadi 2008;Zamani, Rajabzadeh, Ganjali, and Nourozi 2007;Zamani, Rajabzadeh, and Ganjali 2006a;Zamani, Ganjali, Norouzi, Adib, and Aceedy 2006;Zamani, Ganjali, Nourozi, and Meghdadi 2007;Behmadi et al 2007;Zamani, Ganjali, and Seifi 2007;Zamani and Mohaddeszadeh 2008;Ganjali, Dodangeh et al 2006;1042 M. Ebrahimi and H. A. Zamani Ganjali, Norouzi et al 2007;Abedi, Zamani, Ganjali, and Norouzi 2008;Zamani, Ganjali, Norouzi, and Seifi 2006). In this research, the use of 2,5-bis(5-tert-butyl-benzoxazol-2-yl)-thiophene (BBT) as an excellent neutral carrier is introduced for the preparation of a highly Yb(III) ion-selective electrode, and its application for the measurement of the Yb(III) ion concentration is discussed.…”

“…In this study, the potential responses of the introduced Yb(III) membrane sensor to a great variety of cations were investigated through the matched potential method (MPM) (Umezawa, Umezawa, and Sato 1985;Zamani, Ganjali, Norouzi, Tajarodi, and Hanifehpour 2007;Abedi and Zamani 2008;Zamani 2008). The resulting selectivity coefficient values are summarized in Table 2.…”

A Ho(III) potentiometric polymeric membrane sensor based on a new four dentate neutral ion carrier

“…Because the sensitivity and selectivity of any given membrane electrode is significantly related to the composition of the ion selective membrane, the nature of the solvent mediators and the used additives [36][37][38][39][40][41][42], it was decided to study such effects on the behavior of the proposed electrode. The effect of the nature and the amount of the plasticizer, the amount of ionophore and additive on the potential response of the developed Ho 3+ electrode were investigated.…”

Construction of Strontium PVC-Membrane Sensor Based on Salicylaldehyde Thiosemicarbazone

“…Potentiometric selectivity coefficients, describing the preference of the ST-based membrane sensor for an interfering ion, B, relative to strontium ions, A, were determined by the matched potential method (Umezawa, Umezawa, and Sato 1985;Zamani, Ganjali, Norouzi, and Adib 2007;Abedi et al 2008). According to this method, a specified activity (concentration) of primary ions (A, 1.0 Â 10 À5 M of strontium ions) is added to a reference solution (1.0 Â 10 À6 M of strontium ion) and, then, the potential is measured.…”