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Z. H. Liu, M. L. Wen, Y. Yao and J. Xiong, “A Pethidine Selective Polymeric Membrane Electrode,” Boletin de la Sociedad Chilena de Quimica, Vol. 47, No. 2, 2002, pp. 163-168.

has been cited by the following article:

  • TITLE: A New Potentiometric Sensor for Determination of Pethidine hydrochloride in Ampoules and Urine

    AUTHORS: Hazem M. Abu-Shawish, Nasser Abu Ghalwa, Ghada I. Khraish, Jehad Hammad

    KEYWORDS: Potentiometry, Carbon Paste Electrode, Pethidine, Ion-Selective Electrode

    JOURNAL NAME: American Journal of Analytical Chemistry, Vol.2 No.1, January 29, 2011

    ABSTRACT: A simple, precise, rapid and low-cost potentiometric method for pethidine determination in pharmaceuticals and urine is proposed. A chemically modified carbon paste electrode (CMCPE) for pethidine hydrochloride (PDCl) based on pethidine-phosphotungstate (PD-PT) as ion-pair complex was prepared and fully character-ized in terms of composition, usable pH range, response time and temperature. The pethidine electrode showed Nernstain responses in the concentration range 2.1 × 10–6-1.0 × 10–2 M with a detection limit of 7.3 × 10-7 and usable within the pH range 3.5-6.6. This sensor exhibited a fast response time (about 5-8 s), good stability. The value (dE/dt) of the electrode was found to be 0.00071 V/?C, which indicates fairly high ther-mal stability. Selectivity coefficients determined by matched potential method (MPM) and separate solution method (SSM) showed high selectivity for PDCl with respect to a large number of inorganic cations, organic cations, sugars and some common drug excipients. The sensor could be used successfully in the estimation of PDCl in ampoules and in spiked urine samples.