[An automated device for x-ray fluorescence analysis and its use in space and clinical medicine]. / Avtomatizirovannaia ustanovka dlia rentgenofliuorestsentnogo analiza i ee ispol'zovanie v nekotorykh zadachakh kosmicheskoi i klinicheskoi meditsiny.

ABSTRACT

An experimental unit for radiofluorescent analysis using the REIS-I x-ray emitter, a Si (Li) detector, an analyser with the NOIKA LP-4900 microprocessor and appropriate soft ware was devised for a study of some aspects of metabolism and kinetics of a number of electrolytes playing an important role in the state of water-salt homeostasis of the organism of man and animals. Methodological approaches to quantitative determination of the native content of plasma trace elements and macrocells S, Cl, K, Ca and stable bromine administered for determination of extracellular fluid volume--were developed. This method can be used for determination of quantitative indices of the above functions in healthy men and animals during outer space flights, ground mock-up experiments, for clinical investigations in diagnosis of subpathological conditions and for control of therapeutic efficacy.