CCME F1 Retention Time Marker Back Catalog number: 60033 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93916 Sulfur Standard Price on request 50005 1-Chlorooctadecane Price on request DF-IS-B40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request