ANALYSIS OF LEAD AND TIN IN STRONG BRINE AND HIGH IRON SYSTEMS USING THE MICROSAMPLING TECHNIQUE

The development of hydrometallurgical techniques such as the iron(III) chloride-sodium chloride system for the recovery of metals from scrap materials necessitates the analyses of these metals in a high salt me dium during the recovery studies. An alternative method for the analys is of lead and tin in strong brine and high iron systems by flame atom ic absorption spectrometry is a microsampling technique in combination with in situ standard addition. Relative standard deviations of 1.2% and 2.2% were obtained for the analysis of lead and tin respectively. The accuracy for the method is also satisfactory with recoveries rangi ng from 90% to 102%. The microsampling technique is rapid and simple, requires small volumes of sample and offers no clogging problems durin g the atomic absorption analyses.