FIELD: analytical chemistry of elements.
SUBSTANCE: the invention is pertaining to the field of analytical chemistry of elements, in particular, to methods of detection of silver availability, that may be used at detection of silver availability in the natural waters and technological solutions. The method of detection of silver availability provides for preparation of a silver solution (1), its transformation into a complex compound and measurement of the luminescent emission intensity. Silver is separated from solutions using a silica gel chemically modified with the help of mercaptogroups and intensity of the silver complex compound luminescent emission (1) is measured with the help of mercaptogroups on the surface of silica gel at 77К at ultraviolet irradiation light. The technical result is simplification of the technological process, decrease of a relative limit of detection, extension of the range of defined concentrations.
EFFECT: the invention ensures simplification of the technological process, decrease of a relative limit of detection, extension of the range of defined concentrations.
3 ex
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