TY JOUR TI Extraction of copper ions by a sorbent based on flax fiber modified with L-arginine KW flax fibre KW modification KW L-arginine KW sodium metaperiodate KW sorption KW Cu(II) ions JO From Chemistry Towards Technology Step-By-Step AU Nokoforova, T.E. AU Vokurova, D.A. AU Sofronov, A.R. PY 2022 IS 3 PB Yaroslavl State Technical University