Calibration Standard 1

NitroPAH IS Mix 1, 7 comp., 10ug/mL in Toluene, 5 x 1ml

alpha alpha alpha (20R,23R,24S)-4 alpha,23,24-Trimethylcholestane, neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. 146276-33-7

Trifluralin, 100 µg/ml, Acetonitrile, 5ml