Results 11 to 20 of about 229,553 (301)
International Journal of Electrochemical Science, 2009 This research introduces the design of an ion-pair based PVC membrane sensor for the phenylpropanolamine (PPA) determination based on some theoretical investigations.
Mohammad Reza Ganjali +4 more
doaj +1 more source
Metals, 2020 The selective recovery of platinum-group metals (PGMs) remains a huge challenge. Although solvent extraction processes are generally used for PGM separation, the use of organic solvents is problematic because of their toxicity and environmental concerns.
Kazuya Matsumoto +4 more
doaj +1 more source
Vacuum-UV negative photoion spectroscopy of CH4 [PDF]
, 2010 Using synchrotron radiation in the range 12-35 eV, negative ions are detected by mass spectrometry following vacuum-UV photoexcitation of methane. Ion yields for H\(^-\), CH\(^-\) and CH\(_2^-\) are recorded, the spectra of CH\(^-\) and CH\(_2^-\) for ...
Berkowitz J +10 more
core +4 more sources
International Journal of Electrochemical Science, 2011 In this work, two kinds of potentiometric sensor were introduced. Both sensors respond based on ion-exchange mechanism. Erythromycin-tetraphenyl borate ion-pair was employed as a sensing element in construction of both electrodes.
Mohammad Reza Ganjali +5 more
doaj +1 more source
Resonant ion-pair formation in electron recombination with HF^+ [PDF]
, 2009 The cross section for resonant ion-pair formation in the collision of low-energy electrons with HF^+ is calculated by the solution of the time-dependent Schrodinger equation with multiple coupled states using a wave packet method.
A. E. Orel +9 more
core +1 more source
PVC Membrane Sensor and Wire Coated Electrode for Determination of Flurazepam
International Journal of Electrochemical Science, 2011 Flurazepam is a benzodiazepine derivative which possesses anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. This research introduces two kinds of PVC membrane sensor (symmetric and asymmetric) for determination of flurazepam ...
Parviz Norouzi +5 more
doaj +1 more source
Journal of the American Chemical Society, 2015 We report that anion-π and cation-π interactions can occur on the same aromatic surface. Interactions of this type are referred to as ion pair-π interactions. Their existence, nature, and significance are elaborated in the context of spectral tuning, ion binding in solution, and activation of cell-penetrating peptides.
Fujisawa Kaori +6 more
openaire +4 more sources
Chemically modified field effect transistors: the effect of ion-pair association on the membrane potentials [PDF]
, 1994 A theoretical model has been developed which relates physically accessible parameters to the formation of a membrane potential. The description is an extension of a theoretical description presented previously by our group, now including divalent cations
Bergveld, Piet +5 more
core +3 more sources
Heteroditopic Rotaxanes and Catenanes for Ion Pair Recognition
Chemistry, 2023 A review of heteroditopic interlocked molecules and their application as receptors for simple inorganic ion pair species. The review details the design and ion recognition properties of the rotaxane and catenane receptors, as well as highlighting some of
Steven J. Nicholson +2 more
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Plastic Sensor for Losartan Potassium Determination based on Ferroin and Ionic Liquid
International Journal of Electrochemical Science, 2018 In this study, a potentiometric sensor based on a plastic-membrane was introduced for the determination of losartan potassium in pharmaceutical formulations.
Mohsen M. Zareh +4 more
doaj +1 more source