MA - EPH Fractionation Surrogate Spike Back Catalog number: 51039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4724-100-NNX10 Mix of deuterated PCBs (28,52,101), 100µg/ml in Nonane, 10 x 1ml Price on request 3609.4-1ML 1,2-Butanediol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 584-03-2 Price on request 10330.17-100-ME Norcocaine Price on request