Rapid determination of zinc in saline waters

A rapid, precise and sensitive solvent extraction-atomic spectrometric technique has been developed for the determination of dissolved zinc in saline waters, using a well established solvent extraction-flame atomic absorption spectrometry method (ammonium pyrollidine dithiocarbamate - methyl isobutyl ketone). The concentration range of the technique covers levels found in estuarine and coastal waters for analytical batches of 22 samples. The limit of detection of the technique is estimated as 0.7 mu g L-1. Data for spiking recovery and long term standard deviation of, determination are presented.