Use these concentrates as antigen positive controls in:

  • ELISA testing
  • Spike and recovery experiments
  • Western blot analysis

Most of the HCP antigen concentrates are extracted from crude sources, such as lysate or culture media, and may have been processed or purified. Absolute quantification of these complex antigens mixtures is difficult, and concentrations and fill volumes may vary by lot. In addition, potency and stability of these antigens in various dilution matrices has not been established. For these reasons, an approximate concentration is listed on the label.

Always determine the final concentration of these antigens under their conditions of use and relative to these standards or calibrators used in the assay.

Explore Antigens

Host cell protein antigen concentrates for corresponding ELISA and western blot kits.

Common process-related impurity antigens, such as bovine serum albumin (BSA), human serum albumin (HSA), insulin, and bovine and human transferrin.

Protein A antigen concentrates and standards.

Bovine, goat, and mouse IgG antigens

Goat milk protein antigens.