The Cell Sciences® Human IL-21 ELISA Antibody Pair is intended for use in an economical  ‘do it yourself’ solid phase sandwich ELISA for the in vitro qualitative and quantitative determination of human IL-21 in cell culture supernatant. The ELISA Antibody Pair reagent set includes a capture antibody and biotinylated detection antibody, one Standard per plate, Streptavidin-HRP, and a detailed procedure including buffer composition.  

Sensitivity:  5 pg/ml

Specificity:  native and recombinant human IL-21

Standard:  recombinant human IL-21