title: Separation and enrichment of arsenic(V) with composite resin beads containing magnetite crystals.
abstract: The adsorption of arsenic(V) was investigated using macroporous resin beads containing magnetite crystals. Arsenic(V) was favorably adsorbed at pH 2-9, where the distribution coefficients were larger than 10(3). The maximum capacity was 0.050 mmol/g. Metal cations including Ca(II), Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and La(III) did not give serious interference at 10(-4) M level. Diluted arsenic(V) was collected with a packed column, and the retained arsenic(V) was quantitatively eluted out with 1 M NaOH.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, 4-2-1, Nigatake, Miyagino, Sendai 983-8551, Japan.
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Wakui
authors.forename: Anna E
authors.initials: AE
authors.lastname: Persulessy
authors.forename: Takuji
authors.initials: T
authors.lastname: Ikeda
authors.forename: Takeo
authors.initials: T
authors.lastname: Ebina
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Onodera
authors.forename: Toshishige M
authors.initials: TM
authors.lastname: Suzuki