E. M. Basova, V. M. Ivanov, O. A. Shpigun Use of supercritical fluids in the inorganic analysis Abstract The opportunities, advantages, lacks and prospects of use supercritical fluids for division and extraction of complexes of metals with organic reagents are considered. The theoretical bases supercritical fluid chromatography and factors influencing division of complexes of metals (a nature of organic reagent, solubility of reagents and complexes in supercritical fluid, type of a column, motionless phase, additive of the modifier in a mobile phase, solvent of test) are discussed. The processes occurring to complexes in time of chromatography are discussed. The bases supercritical fluid extraction and factors influencing extraction of metals (a nature and solubility in supercritical fluid of organic reagent and complexes, concentration and ways of input reagent in system, additive of the modifier, water, superficial - active substances, collector, matrix) are considered. The opportunities of methods for definition of metals in various objects are shown.
Copyright (C) Chemistry Dept., Moscow State University, 2002 |
|