PAH Standard, 1000µg/ml in methylene chloride, 1ml

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene

2,2',4,4',5-Pentachlorodiphenyl ether, 1.2ml x 50ug/ml, nonane

Theophylline,1000 µg/mL,MeOH,1mL,