VPH Calibration Check Standard Rev 1.1 Back Catalog number: 96843 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M3-MEL [13C3]-Melamine, 1.2ml x 100ug/ml, water Price on request C10148500 Amaranth, certified, 0.25g Price on request CFN99171 Astragaloside IV, >98%, 20mg Price on request