Shkumat A. Acetylacetonates of lead, cadmium and chromium as reference materials for atomic absorption spectrometry

1. Research objects: calibrating of atomic-absorption determination of cadmium, lead and chromium with the use of acetylacetonates (AA) of metals as reference materials (RM). Purpose: creation of RM on the basis of AA Сd, Pb and Cr; choice of modifiers on the basis surfactants solutions for improvement of metrologic characteristics of atomic absorption determination of of Сd, Pb and Cr in multicomponents objects. Methods: complexsonometry, gravimetry, element analysis IR, UF and atomic-absorption spectrometry, atomic-emission spectrometry with inductive coupled plasma, microwave and ultrasonic treatment of standards. Studied: acetylacetonates of Сd, Pb and Cr as RM for atomic absorption analysis multicomponents objects. It was shown that AA of metals meet the requirements to RM. The new extractants on the basis of surfactants solutions were suggested for petroleum samples preparation and metal acetylacetonates were offered as RM for atomic absorption determination of metals contents in petroleum and alloys. Chemical modifiers on the basis of surfactants solutions were proposed for atomic absorption analysis in low temperature flame that allowed improvement of metrologic characteristics of analysis methods. Degree of introduction: results are inculcated in laboratory practices on course "Metrology providing of atomic-absorption analysis" and "Methods of atomic spectroscopy" on chemical metrology department. V.N. Karazin Kharkov national university, NVO "Monolith" (Kharkov), laboratories of Kharkov region consumer union, OAC "South radiofactory" (Dnepropetrovsk), SVNC "Intellect-service" (Kharkov).