Multi-Element Internal Std., 10ug/ml, 4x25ml Back Catalog number: 52319 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 10138.18-10MG Estrone sulfate sodium salt, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 438-67-5 Price on request 10108.6-50-IO Bis(2,3-dibromopropyl)phosphate, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5412-25-9 Price on request S-4370-100-5ME EPA 528 rev. 1.0 Sample Fortification Solution 1 100µg/mL in methanol; unit: 1x5mL 2420.6 2-Chlorophenol-3,4,5,6-d4 [93951-73-6] Price on request