Retention Time Verification Standard Back Catalog number: 51136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92225 Semi-Volatile Standard Price on request 682389 Ipronidazole-hydroxy, 100 µg/ml, Methanol, 1ml Price on request XA15960000CY Pentachlorobenzene, 100µg/ml in CY, 1ml Price on request