Diphenylamine

Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml

4,4'-DDT 13C12, 100µg/mL in Acetone, 1ml

Dialy Quality Control Standard (with Internal Standard) 3 Analytes, each Vol.% as listed in isooctane; units: 1x10 mL, 5x10mL. Name Vol.% Benzene 0.64 Toluene 4.8 Isooctane 90.56Methylethylketone (Int.Std.) 4.0