Abstract:

It is one of the generally and preferable methods to analysis As，Sb，Bi for the fluorescence spectrometry of hydride generation atomic.But，in process of measuring the As，Sb，Bi used atom fluorescence spectrometry，there are many factors affected the results.Through a series of experimental studies，and comprehensive analysis the various factors that may raised which concluded the samples preparation（such as sample weight，samples decomposition，media test solution，acidity choosing，effects of coexisting ions and eliminate the impact of the reagent blank），the contamination of high levels samples and instrument conditions （such as negative pressure，the carrier gas，shielding gas flow，observation height and the concentration of the reducing agent） on measuring the As，Sb，Bi used the fluorescence spectrometry of hydride generation atomic，the corresponding solution was proposed，and the more reasonable analysis conditions also was obtained.It provides a reliable guarantee for measuring the As，Sb，Bi of the geochemical samples.

Key words: As, Sb, Bi, determinate, geochemical samples, influencing factors, Atom Fluorescence Spectrometry