Tin(II)-ion-selective electrode consisting of dibenzo-18-crown-6 (DB18C6) as an ionophore in PVC matrix was developed. The influences of membrane composition, selectivity, response time, reversibility and temperature on the electrode performance were investigated. The electrode showed a near Nernstian response for Sn2+ ions over a concentration range from 1.0× 10-6 – 1.0 × 10-2 M with a slope of 27.5 ± 0.6 mV per concentration decade in a acidic solution (pH=1). The limit of detection was 8.0 × 10-7 M. It has a relatively fast response time and can be used for at least 3 months without any divergence in potentials. The isothermal temperature coefficient of this electrode amounted to 0.0012 V/ °C. The stability constant (log Ks) of the Sn(II) – DB18C6 complex was determined at 25 °C by potentiometric titration in mixed aqueous solution.
Aghaei, H., Giahi, M., Arvand, M., & Aghaei, M. (2004). Polymeric Membrane Sensor for Potentiometric Determination of Tin(II) Ions. Journal of Physical & Theoretical Chemistry, 1(2), 1-7.
MLA
Hossein Aghaei; Masood Giahi; Majjid Arvand; Mehran Aghaei. "Polymeric Membrane Sensor for Potentiometric Determination of Tin(II) Ions". Journal of Physical & Theoretical Chemistry, 1, 2, 2004, 1-7.
HARVARD
Aghaei, H., Giahi, M., Arvand, M., Aghaei, M. (2004). 'Polymeric Membrane Sensor for Potentiometric Determination of Tin(II) Ions', Journal of Physical & Theoretical Chemistry, 1(2), pp. 1-7.
VANCOUVER
Aghaei, H., Giahi, M., Arvand, M., Aghaei, M. Polymeric Membrane Sensor for Potentiometric Determination of Tin(II) Ions. Journal of Physical & Theoretical Chemistry, 2004; 1(2): 1-7.
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