Sandwich ELISA analysis of human IgE using Mouse anti Human IgE (GTX40443) as a capture reagent and horseradish peroxidase conjugated Mouse anti Human IgE (GTX43311) as a detection reagent with purified human IgE as antigen. A serum sample at 1/10 (blue) and 1/5 (green) and a plasma sample at 1/10 (red) and1/5 (orange) is shown