Strontium (Sr) Back Catalog number: 58138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 18000-1150-100ME5 Theophylline, 100µg/ml in MeOH, 5ml Price on request 92934 Retention Marker Standard - TX1005 Price on request 2880.3-1ML Methyl acetate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 79-20-9 Price on request