Abstract: The ionophore and polymer membrane selective for aluminum (III) ion provide an ionophore that is selective for aluminum (III) ion [Al3+]. The ionophore may be used as a dopant in a polymer membrane formed from a polymer matrix, e.g., poly (vinyl chloride) (PVC), and that may also include a plasticizer, such as dioctylphthalate (DOP) and o-nitrophenylloctyl ether (o-NPOE). The polymer membrane may be incorporated into an ion selective electrode (ISE) that can be used as a potentiometric sensor for the detection of Al3+ ions in wastewater.

Abstract: The potentiometric device and method selective for pioglitazone relates to the detection of pioglitazone in urine, in other liquid biological samples, and in pharmaceutical preparations for quality control testing and the like, and particularly to the use of a potentiometric sensor for potentiometric detection and measurement of the concentration of pioglitazone. The potentiometric sensor includes a plasticized polyvinyl chloride (PVC) matrix membrane having an ionophore impregnated or embedded therein. The ionophore is an iodobismuth anion in which the iodobismuth anion forms a complex with pioglitazone. The polymer membrane is plasticized with either ortho-nitrophenyl octyl ether (NPOE) or dioctyl phthalate (DOP).

Abstract: Logging systems and methods to provide azimuthally-sensitive saturation logs. In some embodiments a processor operates on formation porosity and resistivity measurements from an azimuthally-sensitive logging tool assembly to derive a saturation log having a dependence on tool position and rotation angle, and possibly on radial distance as well. The processor may provide the log to a user via a screen, printer, or some other display mechanism. The logging tool assembly includes at least one tool to measure formation porosity. Suitable tools include a gamma density tool, a neutron density tool, a nuclear magnetic resonance tool, and an acoustic tool. The tool assembly further includes at least one tool to measure formation resistivity. Suitable tools include a laterolog tool, an induction tool, and a propagation resistivity tool. The tool assembly can be a wireline sonde, a tubing-conveyed logging assembly, or a logging while drilling tool assembly.