VPH Calibration Check Standard Rev 1.1 Back Catalog number: 96843 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675104 Sodium p-n-decylbenzenesulfonate, 100 µg/ml, Meth Price on request 79025 Anthracene Price on request 672998 17a-Ethinylestradiol, 250mg Price on request