Okayama University researchers describe in the journal Optics Express the use of Terahertz (THz) chemical microscopy to measure the pH of water-based solutions with a volume as small as 16 nL. The ...

IT has been found possible to concentrate inorganic ions from aqueous solutions, even if very dilute, by a flotation technique. The principle depends upon the use, as a collector, of a surfactant ion, ...

Ion selective electrodes, also known as ion electrodes, are electrodes that react to specific ions in an aqueous solution. Although a pH-sensitive glass electrode can be considered as a hydrogen ion ...