Study of a Copper Microelement Compound Formed in Ammophosis Pulp Dilbar Ramazonova, Zokirjon Turayev, Bakhodir Mamurov, Aisholpan Shamishova, Diyorbek Absattorov, Ilkham Usmanov and Murodjon Samadiy E3S Web Conf., 411 (2023) 01046 Published online: 10 August 2023 DOI: 10.1051/e3sconf/202341101046