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| Designed to actively block interfering antibodies (HAAAs, RF, Heterophiles) by neutralizing them allowing the binding of analyte/antigen to capture and detector antibodies to occur. Since active blocking reagents contain specific antibodies they may typically be used in lower concentrations than passive blocking reagents. |
| Super ChemiBlock Heterophile Blocking Agent | Catalogue No. CBS-K |
| Goat anti-Human IgG Fc Fragment (Gamma Globulin Fraction) | Catalogue No. AB728-K |
| Goat anti-Human IgG Fc Fragment. Affinity purified. (Gamma Globulin Fraction) | Catalogue No. AP113-K |
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| Passive blocking reagents are comprised of normal animal immunoglobulins and other components which essentially overwhelm and reduce the concentration of interfering antibodies by providing alternate binding sites to those of the detector and capture antibodies. Passive blocking reagents may be combined and/or used with active blockers to optimize formulations for specific assays. |
| ChemiBlock II Heterophile Blocking Agent | Catalogue No. CBII-K |
| Mouse IgG (Purified) | Catalogue No. PP54-K |
| Rabbit IgG (Gamma Globulin Fraction) | Catalogue No. PP63-K |
| Rabbit IgG (Purified) | Catalogue No. PP64-K |
| Equine IgG (Gamma Globulin Fraction) | Catalogue No. PP301-K |
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| Purified Mouse IgG1. Affinity purified. | Catalogue No. PP100-K |
| ChemiBlock Blend Heterophile Blocking Agent. Affinity purified. | Catalogue No. PP1230-K |
