TABLE 4

Effects of different matrices on the binding of C225 to the sensor surface (mean ± S.D., n = 3)

Concentration of C225 (0.4 μg/ml)Observed Concentration (μg/ml, Mean ± S.D.)Precision (%)Accuracy (%)
50% human serum0.432 ± 0.0276.25108.0
50% Sprague Dawley rat serum0.442 ± 0.05712.93110.5
20% monkey serum containing 0.4 μg/ml chimeric recombinant anti-CD20 monoclonal antibody0.424 ± 0.0214.84106.0
20% monkey serum containing 0.4 μg/ml human γ-globulin0.439 ± 0.06414.47109.8
20% monkey serum containing 0.4 μg/ml chimeric recombinant her 2 antibody0.458 ± 0.0408.64114.5