Theophylline, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-55-9

2-Methoxy-5-methylaniline, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 120-71-8

2-Phenylphenol, 100µg/ml in Acetonitrile, 5ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)