DuPont™ AmberSep™ GT74 Chelating Resin is a weakly acidic cation exchange resin with very pronounced selectivity for certain metal ions such as mercury, rhodium, copper, silver, cadmium, and lead. DuPont™ AmberSep™ GT74 has been developed for the removal of mercury from different solutions and gaseous streams and can be regenerated very efficiently with hydrochloric acid.