Meropenem trihydrate, 25mg

Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1

EPA Method 625 Base/Neutrals Mix #4

2-Amino-1-methyl-6-phenylimidazo[4,5-b]py ridine (PhIP), 5mg