Ammonium pyrrolidinedithiocarbamate is primarily used as a chelating agent in analytical chemistry for the extraction and determination of trace metals. It forms stable complexes with various metal ions, making it valuable in environmental testing to detect and quantify heavy metals in water, soil, and industrial waste samples. In the field of biochemistry, it is employed to study metal-protein interactions and to isolate specific metal-containing compounds. Additionally, it finds application in the synthesis of nanomaterials, where it acts as a stabilizing agent during the preparation of metal nanoparticles. Its ability to bind and remove toxic metals also makes it useful in wastewater treatment processes.