Collect all gold plated pins that you want to remove gold from. These pins can be found on the motherboard, cell phones and this kind of electronic devices. With this method you can also remove gold from plated jewelry. Before you start the recycling process make sure that there is not so much other materials which does not contains gold at all. If you want to dissolve gold from pins make sure that you remove parts from these pins which are not gold plated. Also if there are CPU’s with gold on them make sure to remove ceramic parts or other materials for better efficiency in reverse electroplating process. Read more here ....