Produced through a multi-stage process that includes delipidation, salt fractionation, ion-exchange chromatography, gel filtration, and affinity chromatography. No contaminating proteins are observed when assayed at a protein concentration of 20mg/mL against anti-whole serum or anti-fragment specific antisera. All immunoglobulin fragments are prepared from highly purified, whole molecules subject to enzymatic digestion.

Ordering Information: Purified proteins or fragments are supplied lyophilized. Unconjugated Fc and IgM are supplied as liquids. Conjugated purified proteins or fragments are lyophilized products containing preservative and stabilizer. For additional purified proteins and conjugates, contact your VWR sales representative.