CEF Control Peptide Pool, (1 mg) This product contains 0.03 mg (net) of the 32 CEF peptides for a total of 1 mg in one vial. Used in the stimulation of IFNy release from CD8+ T cells in individuals with defined HLA types, these epitopes are useful in applications such as ELISPOT, intracellular cytokine and CTL assays.