| Description | Solid phase sandwich ELISA for the determination of human soluble a-Klotho in serum and EDTA-plasma. For research use only, not for use in diagnostic procedures. | Enzyme-linked immunosorbent assay (ELISA) for the determination of Chromogranin A in human plasma or serum. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of Human Big ET-1 in serum, EDTA-plasma, supernatant of cell culture media and extract from tissue. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human Osteopontin (Human OPN) in plasma (EDTA), urine, or cell culture media. For research use only, not for use in diagnostic procedures. | 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. |