A titer ELISA of alpaca IgG2c. The plate was coated with different amounts of alpaca IgG2c or alpaca IgG. 1:4000 dilution of Anti-Alpaca IgG2c, AlpHcAbs® Rabbit antibody (Biotin) was used as the primary antibody. An HRP conjugated streptavidin(067-101-005) as the secondary antibody.