FIELD: technology for researching chemical and physical properties of substance, possible use for medicinal, forensic, geological, ecological and other research of substance.
SUBSTANCE: method includes preparing a substance, research is performed over portions of representing share by means of analytical method. During that process registration of spectral emission is performed by means of integration of spectral analytical signals for time, less then double time of short-duration appearance of spectral analytic signals from non-homogeneous portions of substance. Elementary and phase composition of substance is determined with utilization of comparison samples. During calculations background is taken into consideration, while periodical short-duration synchronously accumulated signals are sorted relatively to fluctuations of noise for each one of periodically accumulated spectral signals.
EFFECT: improved sensitivity and precision of analysis.
2 cl, 2 dwg, 2 tbl
