BioTron Sickle Cell Reagent Set, Screening test for the Presence of Hemoglobin S 2 x 100 ml Sickle Cell Buffer, 2 vials sickle Cell Reagent, Size 100 tests, Store 2-8 C, BioTron Diagnostics Inc, Hemet California, USA . || For the qualitative determination of positive or negative Sickle Cell Anemia present in Hemoglobin , for in vitro diagnostic use only.