Clarithromycin, 1000µg/ml in MeOH, 1ml

Aloeemodin, >98%, 20mg

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

Sodium dodecylbenzenesulfonate, mixture of linear C10-C14, 38% water, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 69669-44-9