Ion-Selective Electrodes With Ionophore-Doped Sensing Membranes
نویسندگان
چکیده
At the time of this writing, more than 20 000 publications related to ion-selective electrodes (ISEs)1–7 have been published, with approximately two new ones per day in recent years. Figure 1 shows, for the period between 1970 and 2009, the continuing increase in the number of publications that could be readily recognized as reporting on the preparation or use of ionophore-based ISEs. Clearly, this is still a fast growing field. Until the mid 1990s, most of the research in this field focused on the development of new ionophores that provided improved selectivities.4 However, many leading analytical chemists who work in the field have since redirected their attention to an improved understanding of the thermodynamics and kinetics that
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