Open AccessParticipation of cadmium (ll) and copper (ll) ions in intermolecular forces of humic acids in solutions
Author(s) -
V. V. Tikhonov,
O. Yu. Drozdova,
M. M. Karpukhin,
В. В. Демин
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/368/1/012053
Subject(s) - ultrafiltration (renal) , chemistry , cadmium , copper , humic acid , ion , size exclusion chromatography , supramolecular chemistry , intermolecular force , membrane , metal ions in aqueous solution , molar mass distribution , inorganic chemistry , nuclear chemistry , chromatography , molecule , organic chemistry , biochemistry , polymer , fertilizer , enzyme
Using membrane ultrafiltration and size exclusion chromatography (SEC), the effect of Cd (II) and Cu (II) ions on the molecular weight distribution of humic acids (HA) in solution was investigated. It was shown that Cu (II) ions, unlike Cd (II), can take part in the formation of supramolecular HA associates (> 10 kDa).