Bromide determination at nanogram levels by laser-excited molecular fluorescence spectroscopy in a graphite furnace

Bromide was determined at nanogram levels by introducing the sample with excess aluminum into a graphite furnace and measuring the laser-excited molecular fluorescence of aluminum bromide. Experimental parameters including excitation and fluorescence wavelengths, thermal conditions and aluminum concentration were optimized. Effects of concomitant ions and of barium hydroxide concentration, as a matrix modifier, have also been checked. The analytical reliability of the described procedure was checked by determining the bromide content in a standard reference material.