Modified carbon paste electrodes for Cu(II) determination

Iminodiacetic acid functionalized polypyrrole modified electrode as Pb(II) sensor: Synthesis and DPASV studies

“…These authors achieved selective sensing of Pb 2+ ion with a detection limit of 2.7 × 10 −9 M concentration. In another study [19] a CPE was modified with a Schiff base molecule for Cu 2+ determination in the concentration range of 1.0 × 10 −8 to 1.0 × 10 −1 M. Studies have also been carried out with other polymer modified CPEs for the detection of Pb 2+ and other metal ions [20,21]. Iminodiacetic acid (IDA), as a selective metal coordinating ligand, has been used for remediation of lead [22] as well as for other kinds of sensing applications [23].…”

Characterization of Urea Biosensor Based on the Immobilization of Bacteria Proteus Mirabilis in Interaction with Iron Oxide Nanoparticles on Gold Electrode

“…Potentiometric method based on ion-selective electrodes (ISEs) offers advantages such as simple procedure, relatively fast response time, non-destructive analysis, wide linear range with moderate selectivity [9,10] and being extensively applied for the determination of many ions. In our work the potentiometric method was based on the measure of the potential or the ammonium ions concentration in the solution as function of the time when the Proteus mirabilis urease interacts with urea.…”

Thermodynamic study of potassium chloride in glycerol–water mixed solvents using electromotive force measurements at (298.2, 303.2 and 310.2)K

“…Potentiometric sensors detect the relationship between the activity of the species and the observed potential response with the two-electrode system comprising an indicator electrode and a reference electrode [8]. Analytical method based on potentiometric detection with ion-selective electrode (ISE) is considered as an advantageous alternative because of its easy construction and preparation, manipulation, good selectivity, fast response, simple instrumentation, wide linear dynamic range, wide range of operation, low detection limit, non-destructive analysis, sensitivity, good precision and low cost [9][10][11].…”

“…Using ISEs is very convenient for the analysis of samples having difficult matrices such as soil and industrial wastewater and many fields including pollution monitoring, agriculture, food processing and cosmetics [8,11]. ISEs with polymeric membranes containing selective carriers (ionophores) are the most commonly used potentiometric sensors.…”

“…The potential response of an ion-selective electrode depends on the components of the membrane and the nature of plasticizer and additives used [11]. In recent years nanomaterials have been gradually introduced into potentiometric sensor preparation [8].…”