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This assay is intended for use with pharmaceutical products secreted into protein-free CHO growth media. The antibody is raised and affinity-purified against, then calibrated with HCPs typically found in CHO protein-free conditioned media. Special procedures were utilized in the generation of these antibodies to ensure that low molecular weight and less immunogenic impurities, as well as high molecular weight components, would be represented. The assay qualification has determined that the LOD for this kit is <200 pg/ml.
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