Cerium (Ce) Back Catalog number: 57758 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676985 Valproic acid, 100mg Price on request 82492 EPA Method 8240A Mix #2 Price on request DF-LCS-B200 Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml , nonane Price on request