| Description | Radioimmunoassay (RIA) for the determination of 25-hydroxyvitamin D3 and D2 (25-OH-D3 and 25-OH-D2) in serum. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human Aß(1-40) in EDTA-plasma, cerebrospinal fluids, serum, cell culture media or the extract from brain tissue. For research use only, not for use in diagnostic procedures. | Solid phase sandwich enzyme-linked immunosorbent assay (ELISA) for the determination of DPP4 / CD26 in human serum, EDTA-plasma, urine, and CSF. For research use only, not for use in diagnostic procedures. | Inquire | Enzyme immunoassay (ELISA) for the determination of Leptin in human serum, plasma, urine and saliva. For research use only, not for use in diagnostic procedures. |