Hardware-software complex for atomic absorption spectrometry with multistage probe atomization

New compact accessory to atomic absorption spectrometers for increasing of accuracy and sensitivity trace element (heavy and other metals) determination in different substances is developed. It also accelerates the analysis as a whole. Hardware and software technical solutions are described. New methods of multistage fractional atomization for removing of matrix interferences on analytical signal measurement are realized. Several examples of application of the instrument are presented: for direct measurement of cadmium in sea water on the level 10 μg/l and in the table salt — 100 μg/kg; of gold in ore on the mining level 2 g/ton.