Separation and enrichment of arsenic(V) with composite resin beads containing magnetite crystals.
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.
Wakui
Yoshito
Y
National Institute of Advanced Industrial Science and Technology, 4-2-1, Nigatake, Miyagino, Sendai 983-8551, Japan.
Persulessy
Anna E
AE
Ikeda
Takuji
T
Ebina
Takeo
T
Onodera
Yoshio
Y
Suzuki
Toshishige M
TM