| 摘要 |
<p>A method for kinetic-atomic spectrometric analysis of chemical elements consists in that first, a reaction of chemical interaction is selected as a result of which the transition of the tested element from the initial chemical form into another, postreactional form, is effected and the concentrations of the reagents in a solvent are selected to carry out the reaction with the optimal speed; then the reagents are mixed without the reagent which contains the tested element; to the mixture thus obtained is introduced a medium which does not mix with the solvent and which provides for transition into it of the tested element in its postreaction form and dispergation is effected up to obtaining a dispersion system capable of separation into layers; to the thus obtained dispersion system is introduced the reagent containing the tested element and, from the very start of the chemical reaction and during it, the dispersion system is separated into phases one of which contains the tested element in its initial form and the other in its postreaction form. During the reaction the concentration of the tested element in said phases is continuously determined by means of atomic spectrometry and the kinetic analysis is effected on the basis of the obtained information. A device for implementing the method comprises a thermostatic reaction reservoir (1) with a mixing mechanism (4) mounted below it and intended for dispersion of the reaction mix, two capillar tubes (12) and (13) immersed into the reservoir, whose upper ends are connected with an atomizing chamber (9) of an atomic spectrometer (10) through a switch (14).</p> |
