Internal Standard Solution, 1.2ml, nonane

1-Methylphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 832-69-9

Doxycycline hyclate, 100 µg/ml, Methanol, 1ml

2-Methyl-4-nitroaniline,100 µg/mL,acetonitrile,1mL,