Determination of metal ions by capillary electrophoresis in coating

A method of capillary electrophoresis was established to separate and analyze 11 metal ions and 4 metal ions in metal coating were analyzed.Samples were separated in a 58.5(50cm to detect)×50μm i.d.in quartz capillary.The effect of electrolyte composition including complexing agent,pH and background electrolyte for indirect UV detection on the separation was studied.The results of recovery experiment showed that the method had good repetition,high accuracy and was simple and rapid.The recovery rate was in the range of 97.098.6%.The method proved very useful.