PEG and Anti-PEG ELISA Kits

We manufacture ELISA kits for measurement of methoxy-PEG and non-methoxy-PEG (free and conjugated) as well as ELISA kits for detection of anti-PEG IgM and IgG in mouse, rat, monkey, and human serum or plasma. PEG coated plates and blocking buffers are available for those interested in developing their own PEG assays. Researchers should be aware that many commercially available ELISA buffers contain Tween-20 or other polyoxyethylene detergents that significantly interfere with PEG assays. Our blocking buffer is devoid of polyoxyethylene detergents and can be used to block and stabilize plates coated with PEGylated proteins or PEG antibodies.