Retention Time Verification Standard Back Catalog number: 51136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2125.12-K-IOX10 Arochlor 1221 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11104-28-2 Price on request 59222 Total Organic Carbon (C) Price on request 97325 Methanol Price on request