Analysis of water from the Space Shuttle and Mir Space Station by ion chromatography and capillary electrophoresis

Quantitative capillary zone electrophoresis of inorganic anions

“…As can be seen from the table, the large majority of studies showed no comparison data. For the few that did, the comparison has been mainly between CZE and IC [3,23,25,41,43,45,63,65,67,70,72,74,76,77,84,86,96,97,104,106,110,111,113,119,124,126,127,131,134,135,140,141,146,148,149,152,158,174,190,194,195,219]. Typical examples include studies by Yang et al [126], who found that results obtained using a high-sensitivity method developed using sample stacking technique together with the use of an internal standard correlated well with a standard IC method, and work by Fung and Lau [149], who examined a CZE method for the analysis of inorganic anions in rainwater and used an IC technique in parallel, reporting that the results for the major anions were within statistical variation.…”

“…Accuracy can be achieved in one of two ways, firstly, through direct reference to a known standard, such as a quality control standard or certified reference material, or secondly, through reference to a standard analyzed using an alternative technique that is known to be accurate [218]. 110,111,113,119,124,126,127,131,134,135,140,141,146,148,149,152,158,174,190,194,195,219]. Typical examples include studies by Yang et al [126], who found that results obtained using a high-sensitivity method developed using sample stacking technique together with the use of an internal standard correlated well with a standard IC method, and work by Fung and Lau [149],…”

Determinación teórica y comparación con datos experimentales de la cantidad de agua producida por una celda de combustible de membrana de intercambio protónico

“…La celda de combustible de membrana de intercambio protónico también llamada celda de combustible de polímero sólido (SPFC), fue desarrollada por General Electric en los Estados Unidos en la década de 1960 para uso de la NASA en sus primeros vehículos espaciales tripulados [3], [4], [5]. El electrolito es un polímero de iones de conducción.…”

Flow injection method for the determination of silver concentration in drinking water for spacecrafts

“…Lately, a method combining the capabilities of solid-phase extraction for preconcentration and the diffuse reflectance spectroscopy for the colorimetric detection of the silver complex with the reagent 5-(p-dimethylaminobenzylidene) rhodanine and with a nonionic surfactant (Brij 30) as additive, impregnated onto a solid-phase extraction disk, was tested for the determination of silver ions in waters intended for human consumption during space missions [4]. The basics of this study were improved and the design and initial ground-based performance evaluation of multiplexed colorimetric solid-phase extraction were reported [8] and translated to a method that just started a six- Another topic concerning drinking water on manned spacecrafts is the assessment of the chemical form of silver (colloidal [3,9] or silver ions [10]) exerting the biocide action.…”