Used in gold recovery processes, especially from electronic waste and mining solutions. Selectively captures gold ions from complex mixtures, even in the presence of other metals. Ideal for hydrometallurgical operations where high purity and efficient extraction are required. Also applied in recycling precious metals from industrialwaste liquid and refining streams. Regenerable and reusable, making it cost-effective for continuous operations. Commonly used in column systems for automated, large-scale recovery.