EPA Method 525 Internals & Surrogates Back Catalog number: 95227 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9484.8-10MG 2-Phenylethylamine,neat,neat,10mg Price on request 2357.24-100-ME Tetrahexylammonium bromide, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 4328-13-6 Price on request 9139.9-100MG Gabapentin, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 60142-96-3 Price on request