Type of Membrane

Observations

Cellulose acetate

(Whatman)

Az retention: (+)

Pore size: 0.45 μm

Sb(III) retention: (+/−)

Teflon

(Millipore)

Az retention: (−)

Pore size: 1 μm

Sb(III)) retention: (−)

Mixed esters

(Schleicher & Schuell)

Az retention: (+)

Pore size: 0.45 μm

Sb(III)) retention: (−)

Filter paper

(S & S)

Azretention: (+/−)

Black ribbon

Sb(III)) retention: (−)

Nylon

(Millipore)

Azretention: (+)

Pore size: 0.45 μm

Sb(III) retention: (−)

Filter paper

(S & S)

Azretention: (+)

Blue ribbon

Sb(III)) retention: (+)