VPH Primary Calibration Rev 1.1 Back Catalog number: 51167 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677172 Tri-n-octyltin chloride, 1000 µg/ml, Methanol, 5 Price on request 673839 Trinexapac-ethyl, 100mg Price on request 675758 Disulfoton-sulfoxide, 10.0 µg/ml, Acetonitrile, Price on request