Flieger J., Tatarczak-Michalewska M., Kowalska A., Madejska A., Śniegocki T., Sroka-Bartnicka A., Szymańska-Chargot M.:  Effective phospholipid removal from plasma samples by solid phase extraction with the use of copper (II) modified silica gel cartridges (2017 r.) Journal of Chromatography B 2017, Vol. 1070, 1-6