Inexpensive solid-state ion-selective electrodes for student use

Abstract

Describes those ion-selective electrodes that are based on a solid-state sensing membrane.

Construction and evaluation of a solid-state iodide selective electrode: A chemical instrumentation laboratory experiment

“…Brief chapters on the theory of various types of ISE have appeared in some modern textbooks of analytical chemistry and chemical instrumentation. Compared with other branches of chemical instrumentation, articles describing student laboratory experiments on the construction and applications of several types of ISE are very limited (1)(2)(3)(4)(5)(6)(7). Survey articles published recently show that it is important for the students of chemistry and related sciences to participate in ISE laboratory experiments (8) because of their increasing use for analysis, process and control measurements (9).…”

Assembling and Testing a Series of Ion-Selective Electrodes in Analytical Chemistry

“…Many experiments using ISEs have been published in this Journal . − Some use commercial electrodes − ,, to determine Na + , F – , or Ca 2+ . Some use a Ag 2 S pellet , to determine Ag + , Pb 2+ , Cl – , or I – .…”

An Easily Constructed Salicylate-Ion-Selective Electrode for Use in the Instructional Laboratory

“…Such electrodes are in some ways undesirable in teaching applications, because they are frequently engineered to the point that their internal construction is not visible and their operation not obvious. This lack of operational clarity, combined with a desire for more "hands-on" activities in the laboratory, has led to many reports of ionselective electrodes that can be prepared and used by undergraduate students in a teaching laboratory (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). This paper describes one such electrode, selective for the salicylate ion, that we have had particular success with in our instrumental analysis laboratory.…”