or an ion exchange takes place between cations of the test solution and cations of the test device, or anions of the test solution and anions of the test device, and at least one of the ions entering the test device is complexed there by the corresponding ion- selective lipophilic ionophore...
In a similar fashion, amines added to boiler and cooling water (used to control the temperature of the distillation process) are added to prevent equipment corrosion and facilitate waste water management. Analytes of interest include amines, organic acids, common inorganic...
Selectively functionalized calix[4]arenes are used to build effective receptors for cations, anions and neutral molecules or for a combination of a cation and an anion. This was done by combination with a terphenyl unit (cation receptor), a uranyl-containing salen moiety (for anionic and neutral...
We show good model simulations for the main cations and anions in catchment waters. However, modeling pH is more difficult in the highly organic waters and requires modification to the acid dissociation constants. Calculated acid neutralization capacity can also be more difficult to model due to ...
Six sample streams including the low temperature feedwater water, final feedwater, blowdown, high pressure steam, low pressure steam, and condensate return were monitored by online ion chromatography for the dominant cations and anions. Additional samples were taken daily for pH, conductivity, and ...
In the carbonate–silicate cycle, atmospheric CO2dissolves in water and weathers silicates on both the continents and seafloor, which releases cations and anions16,22,23,24,25,26,27. On the continents, the weathering products, including dissolved SiO2, HCO\({\,}_{3}^{-}\), and Ca++, wa...
Anions, Cations and Weak organic acids are present at some level and this is the cleanliness level that needs to be understood. Depending on the type of flux system determines the amount of ionic contamination present. There are a lot of very good qualified analytical labs that perform IC tes...
These highly concentrated electrolytes are typically composed of large organic cations and anions with a high degree of delocalized charge. The main benefit of ionic liquid electrolytes relates to their non-flammability and thermal stability up to temperatures of 300-400 °C. Numerous publications ...
(fluoride, chloride, nitrite, bromide, nitrate, orthophosphate and sulfate). It’s also used for oxyhalides, perchlorate and hexavalent chromium analysis, as well as for determination of organic acids. IC is also used to test for several common cations — the alkali/alkaline earth metals and ...
6. Water solubility and vapor pressure of the test substance should be known, and a reliable analytical method for the quantification of the substance in the test solutions with known and reported accuracy and limit of detection should be available. The following information should normally be ...