INSTRUMENTAL CONTRIBUTION TO UNCERTAINTY MEASUREMENT IN FLAME ATOMIC ABSORPTION SPECTROMETRY

摘要

The sources of uncertainty in the flame atomic absorption determination of copper, cobalt, cadmium and nickel, originating from the spectrometer, were studied. They were identified and divided in three main groups according to their origin - from the flame, from the light source (hollow-cathode lamp) and from the optics. The combined uncertainty of the flame atomic absorption determination was experimentally determined.