Internal Standard Solution, 1.2ml, toluene

2,4-Diethylthioxanthone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 82799-44-8

3,3'-Dichlorobenzidine,100 µg/mL,acetonitrile,1mL

Benzyl butyl phthalate, 100 µg/ml, Cyclohexane,