Zeta Plus™ EXT series with SP media are optimized for clarification of mammalian cell harvest fluids, clarification of high protein concentration feed streams and for optimal protection of downstream sterilizing grade membrane filters. Zeta Plus SP media are composed of inorganic filter aid, cellulose and a resin system that imparts a positive charge to the filter matrix.
They are composed of inorganic filter aid, cellulose and a resin system that imparts a positive charge to the filter matrix, aiding its adsorption of negatively charged contaminants. SP Media are manufactured to procedures prescribed in 3M Purification's Drug Master Files on record at the United States Food and Drug Administration (FDA). Zeta Plus SP series media are non-toxic in accordance with systemic injection testing.