In the evaluation of poly-1, 1.0 kg of the ore concentrate was first combined with 1.5 L of tap water in a plastic bucket and mixed using an overhead stirrer (Fig. ). TCCA (606 g) and sodium bromide (13.3 g) were added in several portions to the stirred mixture over approximately 3 days to leach the gold. Prolonged leaching time and high concentrations of leach reagents were used in this experiment to leach as much gold as possible at room temperature. The leaching process was continued until the gold concentration had plateaued and then the mixture was filtered and the filter cake washed with water. Poly-1 was then added to the filtered leach solution (now 105 ppm in gold) to quench active oxidant and bind gold. A total of 500 g of poly-1 was added in 5 portions over a period of 2 days, with regular monitoring of the gold concentration by AAS. After more than 80% of the gold had been removed by the sorbent, poly-1-Au was isolated by filtration, dried, and then pyrolyzed in a clay-graphite crucible. The crude gold powder was further purified by re-leaching with TCCA/NaBr and then reductively precipitated with ascorbic acid to provide 412 mg of gold powder (Fig. ). A sample of this gold was digested using a reverse aqua regia method and analyzed by ICP-MS and ICP-OES to determine that the metal content was 98.8% gold. This series of experiments demonstrates that integrating TCCA leaching method and polysulfide recovery of gold can be done with high selectivity in ore concentrates.