after adding the test material the presence of antigen is determined using two additional heterologous antibody layers , one of 'developing antibody ' , in this case human anti-e. histolytica immunoglobulin ( hae ) , which is followed by a final layer of peroxidase conjugated sheep anti-human immunoglobulin antibody ( sh-hrp ) .
C0027021
peroxidase
C0086418
human